Testing an anti-HIV trio.
D002986:Clinical Trials as Topic; D016049:Didanosine / Q000627:therapeutic use*; D004359:Drug Therapy, Combination; D015658:HIV Infections / Q000188:drug therapy*; D006801:Humans; D016047:Zalcitabine / Q000627:therapeutic use*; D015215:Zidovudine / Q000627:therapeutic use*
D015215:Zidovudine; D016047:Zalcitabine; D016049:Didanosine