1. From University of Alabama, Birmingham, Alabama; Harvard School of Public Health, Boston, Massachusetts; Johns Hopkins University School of Medicine, Baltimore, Maryland; Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania; Case Western Reserve University, Cleveland, Ohio; Gilead Sciences, Foster City, California; Bristol-Myers Squibb, Plainsboro, New Jersey; Duke University Community Advisory Board, Durham, North Carolina; and Columbia University Medical Center, New York, New York.