Building a Medical Search Engine Marketing Strategy

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Key Takeaways

  • Behavioral health search programs succeed or fail on admissions, not rankings, and must be built against FTC, HHS, 42 CFR Part 2, and OARFPA constraints.
  • Four pillars structure a defensible program: demand intelligence, evidence-graded content, privacy-safe measurement, and admissions-tied attribution, each with a distinct metric and failure mode.
  • The highest-leverage decisions involve gating third-party tags on inquiry pages 15, retiring unsubstantiated outcome language 10, and reconciling calls against intake disposition codes.
  • Shift focus this quarter by leading dashboards with qualified calls and admits, publishing a data-flow inventory, auditing ad copy against a claims register, and elevating tracked phone paths.

Why Behavioral Health Search Programs Fail on Admissions, Not Rankings

Most treatment centers evaluating their search program are looking at the wrong scoreboard. Ownership sees traffic charts trending up, keyword positions improving, and impression counts climbing quarter over quarter, while the intake team reports the same census pressure it had twelve months ago. The disconnect is structural: the program was built to produce rankings, and rankings do not admit patients.

Behavioral health search operates under conditions that general medical marketing does not share. Adults now discover care primarily through general search rather than specialized health portals, and 58.5% of U.S. adults used the Internet to look for health or medical information during the second half of 2022 1. That demand is real, but converting it into admissions inside a regulated category means running the program against four constraints most agencies never price in: FTC substantiation standards for treatment claims, HHS and FTC scrutiny of tracking pixels on health pages, 42 CFR Part 2 protections on patient records, and OARFPA authority over deceptive SUD marketing.

Programs that ignore any one of those constraints do not fail slowly. They either underdeliver on qualified calls or accumulate exposure that a single enforcement action can convert into a settlement. The rest of this piece lays out the four pillars an operator can hand to a team or agency and hold accountable.

Infographic showing US adults using internet for health information (July-Dec 2022)
US adults using internet for health information (July-Dec 2022)

The Four Pillars of a Defensible Search Program

A search program that produces admissions in this category rests on four pillars, each with a primary metric and a distinct failure mode.

Demand Intelligence
Maps what prospective patients and families actually search before they know your brand exists; the failure mode is bidding into markets or seasons where intake capacity cannot absorb the calls.
Evidence-Graded Content
Produces educational pages that hold up to FTC substantiation review; the failure mode is outcome language and testimonials that read as implied guarantees.
Privacy-Safe Measurement
Instruments the site without disclosing treatment-related browsing to advertising vendors, which HHS OCR has stated regulated entities are not permitted to do through tracking technologies 15; the failure mode is a pixel stack that converts marketing wins into enforcement exposure.
Admissions-Tied Attribution
Ties spend to qualified calls and admits rather than sessions; the failure mode is a dashboard that celebrates traffic while census stays flat.

The following sections take each pillar in turn.

Demand Intelligence: Mapping Search Before Branded Queries Appear

Where Treatment Discovery Actually Starts

Treatment-seeking behavior does not begin at a facility’s homepage. It begins in a general search box, hours or weeks before a brand name enters the picture. A systematic review of online health-information seeking found that 83% of health-information consumers searched using a general search engine, while only 15% went directly to a specific health-information website 2. For a treatment-center operator, that ratio has a direct budget implication: spending concentrated on brand terms and directory placements captures the small tail of demand that already knows where it is going, while the much larger head of the funnel is being answered by whichever page happens to rank in Google or Bing for the underlying question.

The operational read is that non-branded organic visibility and non-branded paid search are not “top of funnel” line items to defer. They are where prospective patients and family members first encounter the category, and where their impression of clinical competence, honesty, and accessibility is formed before any intake conversation. A demand-intelligence practice worth funding starts by inventorying the non-branded queries that lead to a facility’s service lines, ranked by monthly volume, competitive density, and current impression share in the DMAs the facility actually serves.

Chart showing Primary tool for online health information seeking
A comparison showing the dominance of general search engines (e.g., Google) over specialized health websites for finding health information, based on a systematic review.

The Pre-Search Symptom Layer

Before someone types “alcohol rehab near me,” they usually type something else. A web-search log analysis of 11,784 Bing users identified 10 medical symptoms that predicted later searches for Alcoholics Anonymous information and 9 that predicted later searches for Narcotics Anonymous information, many of them nonsevere but persistent complaints such as sleep disruption, gastrointestinal problems, and mood symptoms 8. The queries that eventually turn into admissions calls tend to sit on top of a longer trail of symptom, condition, and “is this normal” searches that most treatment centers never publish for.

An operator building content for this layer is not diagnosing anyone. The goal is a set of educational pages that answer the questions a person is already asking, in the language they are using, and route them toward professional evaluation rather than toward self-diagnosis. Practical inputs include:

  • The People Also Ask box on branded and non-branded queries
  • The query strings that already trigger impressions in Search Console
  • The intake team’s own notes on what callers describe in the first thirty seconds

Pages built this way rank against informational queries competitors are ignoring and prepare a caller who arrives at the intake line with context, not confusion.

Geographic and Seasonal Demand Modeling by DMA

National keyword volume is close to useless for a program judged on admissions. Demand for substance-use treatment shifts by state, by month, and by substance class. A longitudinal analysis of Google Trends data from 2010 through 2020 found statistically significant time differences and state-level outliers in searches related to cocaine, methamphetamine, opioids, cannabis, and alcohol, with search measures positively associated with treatment-need, admission, emergency-department, and overdose outcomes 7. That gives operators a defensible way to prioritize DMAs and plan seasonal ad spend against something more tangible than last year’s budget line.

The working model is a rolling scorecard that pairs Search Console impression share and Google Trends indices for each service line with the intake team’s live bed availability by level of care. When trend data spikes in a DMA where a facility has no capacity to absorb calls, that is a signal to throttle spend or route referrals, not to bid harder. When capacity opens in a market with sustained non-branded demand, that is where incremental budget belongs. Demand intelligence becomes a coordination layer between marketing and operations, not a standalone keyword report.

Evidence-Graded Content That Survives FTC Scrutiny

Substantiation Standards for Treatment Claims

Treatment-center copy lives under a stricter evidence rule than most agencies acknowledge. The FTC’s guidance on health claims states that companies must support health-related advertising claims with competent and reliable scientific evidence, and that anecdotal consumer experiences are not sufficient by themselves to substantiate claims about effects 10, 21. That standard applies whether the claim sits in an H1, a service-page bullet, a paid-search headline, or a sitelink extension.

The operational consequence is a claims register. Every recurring phrase across the site and ad account gets categorized as either:

  • A factual description (levels of care offered, licenses held, staff credentials, program length)
  • A general educational statement supported by cited literature
  • An outcome claim that requires substantiation

A conservative rewrite replaces outcome adjectives with described program elements, evidence-based modalities named accurately, and honest statements about what treatment involves. The register also names an owner for each claim category, so legal, clinical, and marketing sign off before language ships.

Editorial Workflow: Clinical Review, Plain Language, Source Transparency

A defensible content operation runs pages through three gates before publication:

  1. Clinical review by a licensed member of the medical or clinical team
  2. A plain-language pass
  3. A source-transparency check

The rationale is documented. A meta-narrative systematic review of online health information concluded that overall quality was suboptimal and that the Internet did not reliably provide health information for laypersons at the time of review 4. CDC’s eHealth literacy summary reinforces that readers arrive with varied capacity to appraise electronic health information, so pages should use plain language, define unfamiliar terms, and identify credible sources rather than assume clinical fluency 5.

Practical implementation: each published page carries a named clinical reviewer with credentials, a last-reviewed date, and citations to primary literature or federal sources for any factual claim. Reading level targets ninth grade or below. The workflow logs review dates in the CMS so pages more than eighteen months old surface for refresh. That log is also the artifact an operator produces if a regulator or platform ever asks how a claim was vetted.

Testimonials, Alumni Stories, and the Fake Reviews Rule

Alumni stories are one of the highest-converting content types in the category and one of the most heavily regulated. The FTC’s Endorsement Guides state that consumer endorsements are not competent and reliable scientific evidence, and that if an endorsement suggests the endorser’s experience is representative, the advertiser needs substantiation for that representation or a clear disclosure of generally expected performance 11. A recovery story published without context implies typical outcomes the facility cannot substantiate.

The FTC’s final rule banning fake and false reviews and testimonials, announced in August 2024, sharpens the exposure. The rule prohibits creating, selling, buying, or knowingly disseminating fake or false consumer reviews and testimonials, including those from nonexistent users, people without actual experience, or insiders whose relationships are concealed, and it allows civil penalties against knowing violators 12. Review-generation programs that incentivize positive sentiment, suppress negatives, or use AI-generated content without disclosure fall within its scope.

Testimonial handling also intersects with 42 CFR Part 2, which protects records identifying a patient as having or having had a substance-use disorder when obtained by a covered program for treatment, diagnosis, or referral 19. Written authorization, scope limits, and retention controls belong in the workflow before a story is drafted, not after publication.

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Privacy-Safe Measurement: Tracking Admissions Without Leaking PHI

What the Monument Settlement Changed for Pixel Deployment

The Monument enforcement action reset the baseline for how behavioral health operators should think about advertising pixels. The FTC alleged that Monument, an alcohol-use-disorder telehealth provider, disclosed sensitive treatment information from as many as 84,000 users to advertising platforms through pixels and APIs despite privacy promises made to those users. The proposed order would prohibit health-data disclosure for advertising and require affirmative consent for other third-party disclosures 16. The action was announced in April 2024, and it reached a company that many operators had not considered a traditional HIPAA-covered entity.

The operational read for a treatment center is straightforward: the analysis does not start with HIPAA status. It starts with what the pixel actually transmits and what the site promised users. A Meta pixel firing on a page titled with a substance name, an assessment form submission event, or a conversion tag on a scheduling confirmation can all carry information from which health inferences are drawn. FTC guidance separately notes that browsing and location information can convey health information even when no diagnosis is exchanged 13.

Two changes belong on this quarter’s roadmap:

  1. Remove or gate every third-party advertising tag on treatment inquiry, assessment, insurance verification, and confirmation pages until the data flow is documented and legal has signed off.
  2. Reconcile the site’s privacy notice with what tags actually do; the Monument allegations turned on the gap between promises and practice, not on a technical footfault.

Reading the OCR Tracking Guidance After the June 2024 Court Order

HHS OCR’s tracking-technology guidance is the other document that belongs open on the marketing director’s desk. OCR states that regulated entities are not permitted to use tracking technologies in a manner that results in impermissible disclosures of PHI, that a privacy-policy notice alone does not authorize such disclosure, and that a business-associate agreement and applicable permission may be required for vendors that receive it 15. Cookies, pixels, session-replay scripts, and fingerprinting are all in scope when they collect information that meets the PHI definition.

The legal posture shifted in June 2024. OCR’s page notes a federal court order dated June 20, 2024, that vacated the portion of the bulletin addressing circumstances where an online technology connects an IP address with a visit to an unauthenticated public webpage about specific health conditions or providers 15. That narrows the scope of OCR’s stated position for unauthenticated general-information pages, but it does not vacate the underlying HIPAA rules, and it does not touch authenticated pages, forms, appointment requests, or telephone interactions where identifiers plus treatment context clearly meet the PHI definition.

The practical stance is neither ignoring the guidance nor over-reading it. Treat authenticated portals, intake forms, and any page tied to a specific individual’s treatment inquiry as PHI-adjacent by default. For general educational pages, get entity-specific legal counsel rather than a blanket rule from either extreme.

A Data-Flow Inventory for Call Tracking, Chat, and CRM

The defensible artifact is a data-flow inventory. It lists every technology on the site and intake stack that touches a visitor or caller, the categories of data each one collects, where that data goes, how long it is retained, and which vendor agreement covers it. The FTC guidance frames the same exercise: organizations should understand what they collect, how they use it, to whom they disclose it, and how long they retain it 13. Call-tracking numbers, chat widgets, session-replay tools, scheduling embeds, CRM integrations, and lead-routing partners all belong on the list.

Two categories deserve extra attention in this vertical. Call recordings and CRM records tied to a treatment inquiry can qualify as protected records under 42 CFR Part 2, which restricts use and disclosure of covered SUD records unless specified circumstances exist and limits disclosures to information necessary for the purpose 19. Chat transcripts and session replay can capture the same content that a pixel would, and often at higher fidelity. Inventory the stack quarterly, sunset vendors that cannot execute a compliant agreement, and document who owns each remediation task.

Admissions-Tied Attribution: Instrumenting for Qualified Calls and Admits

Retiring Sessions and Rankings as Primary KPIs

A dashboard that leads with sessions, keyword positions, and bounce rate is measuring the wrong thing for a program judged on census. The reporting hierarchy that actually reflects the business runs in the opposite direction:

  1. Admits
  2. Assessments completed
  3. Qualified calls
  4. Form submissions
  5. Organic and paid visibility

Traffic sits at the bottom because it is an input, not an outcome.

The practical build is a weekly report that reconciles marketing-sourced calls against the intake team’s disposition codes. Every inbound number is tagged by source and campaign at the routing layer, and the intake CRM records whether the call was clinically appropriate, insurance-qualified, and eventually admitted. Rankings and sessions stay in a secondary diagnostic view for troubleshooting, not on the executive summary. Ownership sees admissions attributable to search this week, cost per qualified call by service line, and where the gap between call volume and admit volume is widening.

Conversion Paths That Include Telephone-First Fallbacks

A conversion path built exclusively around web forms and chat quietly excludes a share of the treatment-seeking population. The Rural Opioid Initiative surveyed 3,026 people who use drugs across rural U.S. sites and reported that 35% had no cell phone and 10% had not used the Internet in the prior 30 days; having both a cell phone and Internet access was associated with more medication-for-opioid-use-disorder days and greater likelihood of recent SUD counseling 9. Those numbers describe rural populations specifically, not the whole market, but the operational point holds anywhere a facility serves lower-income or lower-connectivity ZIPs: a digital-only funnel loses admissions before it ever counts them.

The design response is a telephone-first path that runs parallel to the form. A prominently placed, tracked phone number appears above the fold on every service page, insurance page, and location page, with a stated answer window (24/7 or specific hours) and a human answering. Click-to-call is the primary conversion event on mobile, with form submission as a secondary path for callers who prefer text. Referral partners and family members get a distinct number so intake can route and score them separately.

Attribution treats calls as first-class conversions, not a footer detail. Dynamic number insertion ties each call to the source campaign, and the CRM ingests call outcomes so the report reflects which channels produce admits, not just rings. The measurement stack also respects the privacy constraints established earlier: call recordings and CRM records tied to a treatment inquiry can qualify as covered records under 42 CFR Part 2, so retention, access, and disclosure controls apply to the same data the attribution model depends on 19.

Governing Paid Search: Brand Protection, Ad Extensions, Call Scripts

Paid search is where attribution meets enforcement risk most directly. The FTC’s action against Evoke Wellness alleged deceptive practices directed at people seeking substance-use-disorder treatment, including conduct involving search advertising and telemarketing, and the January 2025 complaint reinforced that facility identity, location claims, and call-handling practices are all in scope 18. The FTC’s June 2025 guidance on the settlement notes that the Opioid Addiction Recovery Fraud Prevention Act gives it authority to seek civil penalties, consumer refunds, and enhanced remedies for unfair or deceptive marketing of SUD treatment services 17. That authority sits on top of ordinary FTC deception standards.

The governance layer has three parts:

  1. Ad copy, headlines, sitelinks, callouts, and structured snippets are reviewed against the same claims register that governs the website; “guaranteed,” “proven,” and unsupported superiority language do not survive review.
  2. Location extensions and call extensions point only to facilities the brand actually operates, with the answering party clearly identifying the facility by name at pickup.
  3. Call scripts are documented, recorded per state law with proper notice, and audited monthly against the disposition codes intake uses so that misrouted or misrepresented calls surface in the same report ownership already reads.

If You Manage a Portfolio: A Four-Pillar Scorecard for Multi-Facility Operators

The scope shifts here from a single facility to operators running three, ten, or thirty locations across multiple states. At portfolio scale, the four pillars stop being a strategy document and start being a governance instrument. The question ownership needs answered every month is not “how is search performing” but “which facilities are producing admissions from search, which are absorbing spend without accountability, and where is regulatory exposure concentrated.”

A portable scorecard makes that visible. Each facility reports against the same four rows so a regional director can compare a Phoenix location to a Nashville location without translating vocabulary.

PillarPrimary MetricMeasurement SourceFailure Mode
Demand IntelligenceNon-branded impression share by DMA, reconciled against bed availabilitySearch Console, Google Trends indices 7, intake capacity reportBidding into markets or seasons without capacity to admit the calls
Evidence-Graded ContentPercentage of live pages with named clinical reviewer, last-reviewed date, and cited sourcesCMS review log, claims register 10Outcome language and testimonials that imply representative results without substantiation 11
Privacy-Safe MeasurementThird-party tags on treatment-inquiry pages documented in data-flow inventory with signed vendor agreementsQuarterly tag audit, vendor contract log 15Pixel or CRM disclosures that convert marketing wins into enforcement exposure 16
Admissions-Tied AttributionQualified calls and admits attributable to search, by facility and service lineDynamic number insertion, intake CRM disposition codesExecutive dashboards that lead with sessions and rankings while census stays flat

Two governance rules make the scorecard useful rather than decorative. First, the claims register and data-flow inventory are held at the portfolio level, not per facility. A single approved phrasing library and a single approved tag stack ship to every location, so exposure at one facility does not become exposure at all of them. Second, any facility that adds a new service line, opens a new location, or changes call-routing partners triggers a fresh review against all four rows before spend follows. That cadence is what keeps a portfolio program defensible as it scales.

What to Change This Quarter

Four moves fit inside a single quarter and shift the program’s trajectory:

  1. Replace the executive dashboard’s lead metric with qualified calls and admits by facility and service line, and demote sessions and rankings to a diagnostic view.
  2. Publish a data-flow inventory covering every third-party tag, chat widget, call-tracking number, and CRM integration on treatment-inquiry pages, and gate anything without a documented lawful basis 15, 13.
  3. Audit ad copy, sitelinks, and alumni-story pages against a written claims register, retiring outcome language and testimonial framing that implies representative results without substantiation 10, 11.
  4. Add a tracked, human-answered phone number above the fold on service and location pages, with call outcomes flowing into the same report ownership already reads.

None of the four requires a new agency contract. They require a decision about what the program is being held accountable for.

Chart showing Online health search topics (Florida study, 2014-2015)
A breakdown of online health information seeking behaviors from a 2014-2015 Florida-based study, showing percentages for general health info vs. specific behavioral health topics.

Frequently Asked Questions

How is medical search engine marketing different from standard SEO and PPC for a treatment center?

The tactical mechanics look similar, but the constraints are different. Treatment-center search operates under FTC substantiation rules for health claims 10, HHS OCR expectations for tracking technologies on health pages 15, and 42 CFR Part 2 protections for SUD records 19. A program built without those constraints priced in produces exposure, not admissions.

Can we still run conversion pixels on treatment inquiry pages after the Monument settlement and OCR tracking guidance?

Not without a documented data-flow review. The FTC alleged that Monument disclosed sensitive treatment information from up to 84,000 users through pixels and APIs 16, and OCR states regulated entities may not use tracking technologies for impermissible PHI disclosures 15. Gate advertising tags on inquiry, assessment, and confirmation pages until legal signs off.

Are alumni testimonials and success stories still safe to publish under the FTC endorsement guides and fake reviews rule?

They can be, with controls. The FTC’s Endorsement Guides require substantiation when a story implies representative results or a clear disclosure of generally expected performance 11. The August 2024 fake reviews rule adds civil-penalty exposure for fabricated, incentivized, or undisclosed insider content 12. Written 42 CFR Part 2 authorization comes before drafting 19.

What KPIs should replace rankings and sessions when reporting search performance to ownership?

Report admits first, then assessments completed, then qualified calls, then form submissions, all attributable to search and segmented by facility and service line. Rankings, impression share, and sessions belong in a diagnostic view for troubleshooting. The executive summary should reconcile marketing-sourced calls against the intake CRM’s disposition codes each week.

How should we build content for people searching symptoms before they ever search for treatment?

Publish educational pages answering the symptom and condition questions that precede treatment queries. A Bing search-log analysis of 11,784 users identified 10 medical symptoms predicting later AA information seeking and 9 predicting NA seeking, many nonsevere but persistent 8. Answer in plain language, route to professional evaluation, and avoid diagnostic claims.

Why should telephone-first conversion paths stay in the attribution model instead of the footer?

Because digital-only funnels lose admissions before counting them. A Rural Opioid Initiative study of 3,026 participants reported 35% had no cell phone and 10% had not used the Internet in the prior 30 days 9. Tracked, human-answered numbers above the fold, tied to source campaigns and CRM outcomes, keep those admissions visible.

References

  1. Health Information Technology Use Among Adults. https://www.cdc.gov/nchs/products/databriefs/db482.htm
  2. Online Health Information Seeking Behavior: A Systematic Review. https://pmc.ncbi.nlm.nih.gov/articles/PMC8701665/
  3. Online Health Searches and Their Perceived Effects on Patients and Patient-Clinician Relationships: A Systematic Review. https://pubmed.ncbi.nlm.nih.gov/29730361/
  4. Can Patients Trust Online Health Information? A Meta-narrative Systematic Review Addressing the Quality of Health Information on the Internet. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6712138/
  5. eHealth Literacy. https://www.cdc.gov/health-literacy/php/research-summaries/ehealth.html
  6. eHealth Literacy, Online Help-Seeking Behavior, and Willingness to Participate in mHealth Chronic Disease Research Among African Americans, Florida, 2014–2015. https://www.cdc.gov/pcd/issues/2016/16_0210.htm
  7. Characterizing Help-Seeking Searches for Substance Use Treatment From Google Trends and Assessing Their Use for Infoveillance: Longitudinal Descriptive and Validation Statistical Analysis. https://pubmed.ncbi.nlm.nih.gov/36454620/
  8. Internet Searches for Medical Symptoms Before Seeking Information on 12-Step Addiction Treatment Programs: A Web-Search Log Analysis. https://pubmed.ncbi.nlm.nih.gov/31066685/
  9. Substance use disorder treatment and technology access among people who use drugs in rural areas. https://pubmed.ncbi.nlm.nih.gov/36575145/
  10. Health Products Compliance Guidance. https://www.ftc.gov/business-guidance/resources/health-products-compliance-guidance
  11. Guides Concerning the Use of Endorsements and Testimonials in Advertising. https://www.ftc.gov/system/files/ftc_gov/pdf/P204500%20Guides%20Concerning%20Endors%20and%20Testimonials.pdf
  12. Federal Trade Commission Announces Final Rule Banning Fake Reviews and Testimonials. https://www.ftc.gov/news-events/news/press-releases/2024/08/federal-trade-commission-announces-final-rule-banning-fake-reviews-testimonials
  13. Collecting, Using, or Sharing Consumer Health Information? Look to HIPAA, the FTC Act, and the Health Breach Notification Rule. https://www.ftc.gov/business-guidance/resources/collecting-using-or-sharing-consumer-health-information-look-hipaa-ftc-act-health-breach
  14. Model Letter: Use of Online Tracking Technologies. https://www.ftc.gov/system/files/ftc_gov/pdf/FTC-OCR-Letter-Third-Party-Trackers-07-20-2023.pdf
  15. Use of Online Tracking Technologies by HIPAA Covered Entities and Business Associates. https://www.hhs.gov/hipaa/for-professionals/privacy/guidance/hipaa-online-tracking/index.html
  16. Alcohol Addiction Treatment Firm will be Banned from Disclosing Health Data for Advertising to Settle FTC Charges that It Shared Data Without Consent. https://www.ftc.gov/news-events/news/press-releases/2024/04/alcohol-addiction-treatment-firm-will-be-banned-disclosing-health-data-advertising-settle-ftc
  17. Enforcing the Opioid Addiction Recovery Fraud Prevention Act: The FTC’s Settlement with Evoke Wellness and What It Means for Businesses. https://www.ftc.gov/business-guidance/blog/2025/06/enforcing-opioid-addiction-recovery-fraud-prevention-act-ftcs-settlement-evoke-wellness-what-it
  18. FTC Sues Evoke Wellness and Top Executives for Misleading Consumers Seeking Substance Use Disorder Treatment. https://www.ftc.gov/news-events/news/press-releases/2025/01/ftc-sues-evoke-wellness-top-executives-misleading-consumers-seeking-substance-use-disorder-treatment
  19. 42 CFR Part 2 — Confidentiality of Substance Use Disorder Patient Records. https://www.ecfr.gov/current/title-42/chapter-I/subchapter-A/part-2
  20. Mobile Health App Interactive Tool. https://www.ftc.gov/business-guidance/resources/mobile-health-apps-interactive-tool
  21. Health Claims | Federal Trade Commission. https://www.ftc.gov/business-guidance/advertising-marketing/health-claims