Warren Grant Magnuson Clinical Center: One of the centers of the National Institutes of Health (NIH), the Magnuson Clinical Center is the clinical research center of the NIH and provides the patient care, services, and environment necessary to conduct clinical trials and training on the NIH campus. Warren Grant

Magnuson Clinical Center, National Institutes of Health, Bethesda, MD 20892. Telephone: (800) 411-1222; Fax: (301) 480-9793. E-mail is available directly from the Web site, <https://www.cc.nih.gov/>;.