title: Researchers are rethinking role of AZT in drug therapy.
mesh_terms: D000998:Antiviral Agents / Q000627:therapeutic use; D018791:CD4 Lymphocyte Count; D016049:Didanosine / Q000627:therapeutic use; D015658:HIV Infections / Q000188:drug therapy*; D006801:Humans; D014481:United States; D015215:Zidovudine / Q000627:therapeutic use*
chemical_list: D000998:Antiviral Agents; D015215:Zidovudine; D016049:Didanosine