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