title: World trade rules and cheaper drugs.
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000188:drug therapy; D019380:Anti-HIV Agents / Q000627:therapeutic use; D003132:Commerce / Q000331:legislation & jurisprudence*; D016527:Drug Costs / Q000331:legislation & jurisprudence*; D004345:Drug Industry; D015658:HIV Infections / Q000188:drug therapy; D006801:Humans; D007880:Legislation, Drug; D010330:Patents as Topic; D013019:South Africa
chemical_list: D019380:Anti-HIV Agents