TY  - RPRT
TI  - The evaluation of needle exchange programs.
AU  - D Vlahov
AU  - R S Brookmeyer
PY  - 1994
DO  - 10.2105/ajph.84.12.1889
UR  - https://pubmed.ncbi.nlm.nih.gov/7998623/
ID  - 7998623
ER  -