Striking the balance on AIDS.
D000163:Acquired Immunodeficiency Syndrome / Q000453:epidemiology*; D000349:Africa; D017977:Deltaretrovirus / Q000472:pathogenicity; D004739:England; D004797:Enzyme-Linked Immunosorbent Assay; D006678:HIV / Q000472:pathogenicity; D006801:Humans; D013223:Statistics as Topic