TY  - GEN
AU  - Hartsock, Peter
AU  - Genser, Sander G. 
TI  - Longitudinal studies of HIV infection in intravenous drug users : methodological issues in natural history research [PDF]
T2  - NIDA research monograph series
PY  - 1991///
CY  - Fishers Lane
PB  - NIDA
KW  - aids
KW  - drugs
KW  - injecterende druggebruikers
KW  - onderzoeksrapporten
UR  - http://www.google.com/search?q=Longitudinal-studies-of-HIV-infection-in-intravenous-drug-users
ER  -