title: Two AIDS medicines back on WHO prequalification list.
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000188:drug therapy*; D019380:Anti-HIV Agents / Q000592:standards* / Q000627:therapeutic use; D017277:Drug Approval; D016568:Drugs, Generic / Q000592:standards*; D006801:Humans; D019259:Lamivudine / Q000592:standards* / Q000627:therapeutic use; D013810:Therapeutic Equivalency; D014944:World Health Organization; D015215:Zidovudine / Q000592:standards* / Q000627:therapeutic use
chemical_list: D019380:Anti-HIV Agents; D016568:Drugs, Generic; D019259:Lamivudine; D015215:Zidovudine