title: Drug combination shows benefits for AIDS patients with history of taking AZT.
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000188:drug therapy* / Q000276:immunology; D019380:Anti-HIV Agents / Q000008:administration & dosage*; D018791:CD4 Lymphocyte Count; D004311:Double-Blind Method; D004359:Drug Therapy, Combination; D005500:Follow-Up Studies; D006678:HIV / Q000187:drug effects / Q000235:genetics; D006801:Humans; D019259:Lamivudine / Q000008:administration & dosage*; D012367:RNA, Viral / Q000032:analysis*; D018894:Reverse Transcriptase Inhibitors / Q000008:administration & dosage*; D013997:Time Factors; D015215:Zidovudine / Q000008:administration & dosage*
chemical_list: D019380:Anti-HIV Agents; D012367:RNA, Viral; D018894:Reverse Transcriptase Inhibitors; D019259:Lamivudine; D015215:Zidovudine