Dr. Paul Volberding is a professor and vice chair of the Department of Medicine at the University of California, San Francisco, and chief of the Medical Service at the San Francisco Veterans Administration Medical Center. He received his undergraduate and medical degrees at the University of Chicago and the University of Minnesota, respectively, and finished training at the University of Utah and the UCSF, where he studied for two years as a research fellow in the virology laboratory of Dr. Jay Levy, later a co-discoverer of HIV. For twenty years, Dr. Volberding's professional activities centered at San Francisco General Hospital where he established a model program of AIDS patient care, research, and professional education. His research career began with investigations of HIV-related malignancies, especially Kaposis Sarcoma. His primary research focus, however, shifted to clinical trials of antiretroviral drugs. He has been instrumental in testing many compounds, including early studies in asymptomatic infection that lead to the concept of HIV disease, not simply AIDS as the target of treatment. Dr. Volberding has written many research and review articles. He is the co-editor-in-chief of the Journal of Acquired Immune Deficiency Syndrome, and a founder of HIV InSite, a comprehensive source of HIV information. He is the founder and chair of the Board of the International AIDS Society - USA. He also served as President of the HIV Medical Association. He was elected a member of the Institute of Medicine of the National Academy of Sciences in 1999.