John G. Bartlett, MD, is Professor Emeritus at the Johns Hopkins University School of Medicine. An internationally renowned authority on AIDS and other infectious diseases, he has co-chaired the U.S. Department of Health and Human Services' panel on antiretroviral agents since its inception in 1996. Across 26 years at Johns Hopkins, he led worldwide efforts to understand, prevent, and treat AIDS. He is the author of more than 500 articles, 280 book chapters, and 60 editions of 18 books. He has served on editorial boards for 19 medical journals. Robert R. Redfield, MD, is a pioneer in clinical human viral research, with notable accomplishments in the area of HIV immunoregulation, immunotherapy, and vaccine development. In collaboration with Dr. Robert Gallo's group in the mid-1980's, Redfield was the first to demonstrate heterosexual transmission of HIV-1. Today his research focuses on applying research strategies to bring treatment to millions of people living with HIV infection particularly in resource-limited parts of the world. He is former Professor of Medicine, Microbiology, and Immunology, Director of Clinical Care and Research, and Chief of Infectious Diseases at the University of Maryland's Institute of Human Virology. Paul A. Pham, PharmD, is Managing Partner of Westview Urgent Care MediCenter in Frederick, Maryland, and Adjunct Instructor of Medicine at Johns Hopkins University School of Medicine. His primary interests include HIV/AIDS clinical care, infectious disease pharmacology, and antiretroviral drug interactions. Pham has more than 20 years of clinical experience in the inpatient care of AIDS and general infectious disease services; he has also served as principal investigator for antiretroviral drug interaction studies. He is a committee member of the CDC/NIH/IDSA opportunistic infection guidelines and the HIV Assist point-of-care program.