title: Lack of evidence for early cases of HIV seropositivity/AIDS in the Free State region.
authors.forename: E
authors.initials: E
authors.lastname: van der Ryst
authors.forename: K
authors.initials: K
authors.lastname: Cloete
authors.forename: L
authors.initials: L
authors.lastname: Opperman
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000453:epidemiology*; D000328:Adult; D006679:HIV Seropositivity / Q000453:epidemiology*; D006801:Humans; D008297:Male; D012189:Retrospective Studies; D013019:South Africa / Q000453:epidemiology