Rev Soc Bras Med Trop. 1995;28 Suppl 2:9-18. Unique Identifier :
Antiviral Agents/*THERAPEUTIC USE Drug Resistance, Microbial Drug
Therapy, Combination Human HIV/ENZYMOLOGY/GENETICS HIV
Infections/*DRUG THERAPY Mutation Zalcitabine/THERAPEUTIC USE
Zidovudine/THERAPEUTIC USE JOURNAL ARTICLE