title: [Epidemiological data on 20 consecutive cases of acquired immunodeficiency syndrome].
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000453:epidemiology*; D000328:Adult; D006467:Hemophilia A / Q000150:complications; D006716:Homosexuality; D006801:Humans; D008297:Male; D008875:Middle Aged; D019966:Substance-Related Disorders
vernacular_title: Informe epidemiológico de 20 casos consecutivos de síndrome de inmunodeficiencia adquirida.