title: Revision of the case definition of acquired immunodeficiency syndrome for national reporting--United States.
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000145:classification* / Q000453:epidemiology; D000914:Antibodies, Viral / Q000032:analysis; D017977:Deltaretrovirus / Q000276:immunology; D004812:Epidemiologic Methods; D006801:Humans; D014481:United States
chemical_list: D000914:Antibodies, Viral