Study to examine use of retrovir.
D000163:Acquired Immunodeficiency Syndrome / Q000517:prevention & control*; D000998:Antiviral Agents / Q000627:therapeutic use*; D004341:Drug Evaluation; D006801:Humans; D009784:Occupational Diseases / Q000517:prevention & control*; D013936:Thymidine / Q000031:analogs & derivatives* / Q000627:therapeutic use; D015215:Zidovudine
D000998:Antiviral Agents; D015215:Zidovudine; D013936:Thymidine