title: The problem. Etiology, pathogenesis and epidemiology of HIV infection.
authors.forename: J S
authors.initials: JS
authors.lastname: Greenspan
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000453:epidemiology / Q000209:etiology* / Q000382:microbiology; D006678:HIV / Q000502:physiology; D006801:Humans