title: Rationale for variations in clinical trial design in different HIV disease stages.
authors.affiliation: Department of Oncology/Medicine, University of California, San Francisco General Hospital 94110.
authors.forename: P A
authors.initials: PA
authors.lastname: Volberding
mesh_terms: D002986:Clinical Trials as Topic / Q000379:methods*; D015658:HIV Infections / Q000188:drug therapy* / Q000473:pathology; D006801:Humans; D012107:Research Design