Harm reduction and needle exchange programmes.
Bluthenthal
R N
RN
Kral
A H
AH
Lorvick
J
J
Erringer
E A
EA
Edlin
B R
BR
D003430:Cross-Sectional Studies; D062787:Drug Overdose / Q000209:etiology*; D006801:Humans; D016015:Logistic Models; D018671:Needle-Exchange Programs; D012495:San Francisco; D015819:Substance Abuse, Intravenous