Seroepidemiology of human immunodeficiency virus in Africa from 1970 to 1974.
D000163:Acquired Immunodeficiency Syndrome / Q000453:epidemiology; D000353:Africa, Southern; D000914:Antibodies, Viral / Q000032:analysis*; D006678:HIV / Q000276:immunology*; D015483:HIV Antibodies; D006801:Humans; D008297:Male
D000914:Antibodies, Viral; D015483:HIV Antibodies