Disclaimers
Endorsement Disclaimer — Links to Other Sites
Our Web site has links to many other federal agencies, and in a few cases we link to private organizations. You are subject to that site's privacy policy when you leave our site. We proudly comply with 508 accessibility regulations, but we cannot be responsible for Section 508 compliance (accessibility) on other federal or private Web sites.
Reference in this Web site to any specific commercial products, process, service, manufacturer, or company does not constitute its endorsement or recommendation by the U.S. Government or National Institutes of Health (NIH). NIH is not responsible for the contents of any "off-site" Web page referenced from this server.
Endorsement Disclaimer — Pop-Up Advertisements
When visiting our Web site, your Web browser may produce pop-up advertisements. These advertisements were most likely produced by other Web sites you visited or by third party software installed on your computer. The National Institutes of Health (NIH) does not endorse or recommend products or services for which you may view a pop-up advertisement on your computer screen while visiting our site.
Information Disclaimer
The information provided using this Web site is only intended to be general summary information to the public. It is not intended to take the place of either the written law or regulations.
It is not NIH’s intention to provide specific medical advice to users of the NIH Web site, instead we provide users with information to help them better understand their health, diagnosed conditions, and the current approaches related to treatment, prevention, screening, and supportive care. NIH urges users to consult with a qualified health care professional for diagnosis and answers to their personal medical questions.
Press releases and other materials meant for public use will not be posted to the NIH Web site unless they were developed by or for NIH.
Intrusion Detection
This site is maintained by the U.S. Government. It is protected by various provisions of Title 18, U.S. Code. Violations of Title 18 are subject to criminal prosecution in federal court.
For site security purposes and to ensure that this service remains available to all users, we employ software programs to monitor traffic to identify unauthorized attempts to upload or change information, or otherwise cause damage. In the event of authorized law enforcement investigations, and pursuant to any required legal process, information from these sources may be used to help identify an individual.
Accessibility
The National Institutes of Health (NIH) is making every effort to ensure that the information available on our website is accessible to all. If you use special adaptive equipment to access the Web and encounter problems when using our site, please contact us via our Ask NIH online form and we will attempt to provide the information to you in a suitable format. It would be helpful if you can be as specific as possible when describing the information you seek.
If you prefer to call, our main number is 301-496-4000, or you can first review our list of toll-free numbers.
For NIH employees who need assistance with accessibility, please contact the Equity, Diversity, and Inclusion officer in your institute or center.
To learn more about the regulations governing the accessibility of federal electronic information products, visit the United States Access Board or the official Section 508 page.
Document Viewers
Notice to Limited English Proficient Individuals
NIH is renewing its commitment to providing meaningful access to its programs and activities for people with limited English proficiency (LEP). In accordance with Executive Order 13166, “Improving Access to Services for Persons with Limited English Proficiency,” the information translated on the nih.gov site and on the sites of its Institutes and Centers is free of charge to the public.