Do needle exchanges help to control the spread of HIV among injecting drug users?
Frischer
M
M
Elliott
L
L
Taylor
A
A
Goldberg
D
D
Green
S
S
Gruer
L
L
Cameron
J
J
McKeganey
N
N
Bloor
M
M
D015658:HIV Infections / Q000517:prevention & control* / Q000635:transmission; D006293:Health Promotion; D006296:Health Services; D006801:Humans; D009339:Needles / Q000600:supply & distribution*; D015819:Substance Abuse, Intravenous