Anti-HIV agents. Starting therapy--three vs. four drugs.
D000328:Adult; D018791:CD4 Lymphocyte Count; D004359:Drug Therapy, Combination; D015658:HIV Infections / Q000188:drug therapy*; D006801:Humans; D018894:Reverse Transcriptase Inhibitors / Q000008:administration & dosage / Q000627:therapeutic use*; D019562:Viral Load
D018894:Reverse Transcriptase Inhibitors