Harm reduction and needle exchange programmes.
Lifson
A R
AR
D017809:Fatal Outcome; D015658:HIV Infections / Q000517:prevention & control*; D003932:Heroin / Q000506:poisoning; D006801:Humans; D008297:Male; D018671:Needle-Exchange Programs; D019966:Substance-Related Disorders / Q000401:mortality
D003932:Heroin