title: Natural history of HIV infection in European drug users.
authors.forename: J M
authors.initials: JM
authors.lastname: Gatell
authors.forename: D
authors.initials: D
authors.lastname: Podzamczer
authors.forename: B
authors.initials: B
authors.lastname: Clotet
authors.forename: C
authors.initials: C
authors.lastname: Estany
authors.forename: J M
authors.initials: JM
authors.lastname: Miro
mesh_terms: D000163:Acquired Immunodeficiency Syndrome / Q000453:epidemiology*; D015331:Cohort Studies; D006679:HIV Seropositivity / Q000503:physiopathology*; D006801:Humans; D007558:Italy; D019966:Substance-Related Disorders