The NIH does not endorse or recommend any commercial products, processes, or services. The views and opinions of authors expressed on NIH Web sites 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. The NIH is not responsible for the availability or content of these external sites, nor does the NIH endorse, warrant or guarantee the products, services or information described or offered at these other Internet sites.
It is not the intention of the 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 the NIH urges you to consult with a qualified physician for diagnosis and for answers to your personal questions.