Web Site Policies
NIH does not endorse or recommend any commercial products, processes, or services. The views and opinions of authors expressed on NIH websites do not necessarily state or reflect those of the U.S. Government, and they may not be used for advertising or product endorsement purposes.
Some NIH sites may provide links to other Internet sites only for the convenience of World Wide Web users. NIH is not responsible for the availability or content of these external sites, nor does NIH endorse, warrant or guarantee the products, services or information described or offered at these other Internet sites.
It is not the intention of NIH to provide specific medical advice, but rather to provide users with information to better understand their health and their diagnosed disorders. Specific medical advice will not be provided, and NIH urges you to consult with a qualified physician for diagnosis and for answers to your personal questions.
During your visit to 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. NIH, along with other agencies of the U.S. Department of Health and Human Services, does not endorse or recommend products or services that may appear as pop-up advertisements on your computer screen while visiting our site.
NIH Web Privacy Notice
Of the information we learn about you from your visit to "NIH.gov," we store only the following: the domain name from which you access the Internet, the date and time you access our site, and the Internet address of the web site from which you direct-linked to our site. This information is used to measure the number of visitors to the various sections of our site and to help us make our site more useful to visitors. Unless it is specifically stated otherwise, no additional information will be collected about you.
When inquiries are E-mailed to us, we store the question and the E-mail address information so that we can respond electronically. Unless otherwise required by statute, we do not identify publicly who sends questions or comments to our web site. We will not obtain information that will allow us to personally identify you when you visit our site, unless you chose to provide such information to us.
While visiting sites within the NIH.GOV domain, you may occasionally encounter a Web page that employs “cookies”. A cookie is a small file that a Web site transfers to your computer's hard disk allowing our server to "remember" specific information about your session while you are connected.
Requests to send cookies from NIH Web pages are not designed to collect information about you, but only about your browser "session." The cookie makes it easier for you to use the dynamic features of these Web pages. The cookie and the information about your session will be destroyed automatically shortly after you close your browser — it is not permanently stored on your computer. Unless an NIH web page specifically notifies you otherwise, we will not collect and maintain personal information about you.
Many NIH sites are now running customer satisfaction surveys that employ persistent cookies. Participation in this data collection effort is completely voluntary, and failure to respond will in no way affect the visitor's ability to access information. This information will be used by NIH solely for the purpose of improving our public Web sites. More information is available on this use of persistent cookies.
Questions about NIH privacy policies should be sent to the NIH Privacy Act Officer.