title: Frequency, location of cases to be studied.
authors.forename: P
authors.initials: P
authors.lastname: Gunby
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000382:microbiology*; D015483:HIV Antibodies; D015658:HIV Infections / Q000382:microbiology*; D006801:Humans; D014944:World Health Organization
chemical_list: D015483:HIV Antibodies