Changes in needle sharing and syringe cleaning among San Francisco drug abusers.
Sorensen
J L
JL
Guydish
J
J
Costantini
M
M
Batki
S L
SL
D004203:Disinfection; D006801:Humans; D006920:Hygiene; D007275:Injections, Intravenous; D009339:Needles; D012495:San Francisco; D019966:Substance-Related Disorders; D013594:Syringes