Gordin, Fred M.; Nelson, Eileen T.; Cohn, David I.; Matts, John P.; Cohn, David L.; Ernst, Jerome; Benator, Debra; Besch, C. Lynn; Crane, Lawrence R.; Sampson, James H.; Bragg, Patricia S.; El-Sadr, Wafaa Mahmoud; Terry Beirn Community Programs for Clinical Research on AIDS