title: Antiretroviral/immunological studies open for enrollment - Spring, 1999.
mesh_terms: D000293:Adolescent; D000328:Adult; D002986:Clinical Trials as Topic; D004352:Drug Resistance, Microbial; D004359:Drug Therapy, Combination; D005260:Female; D015658:HIV Infections / Q000188:drug therapy*; D006801:Humans; D008297:Male; D018579:Patient Selection; D014861:Washington