Epidemiological aspects of human immunodeficiency virus infection in Milan.
D000163:Acquired Immunodeficiency Syndrome / Q000453:epidemiology*; D015483:HIV Antibodies / Q000032:analysis; D006679:HIV Seropositivity; D006801:Humans; D007558:Italy; D019966:Substance-Related Disorders / Q000382:microbiology
D015483:HIV Antibodies