TY  - RPRT
TI  - Why do so many drug users smoke?
AU  - Robert M McCool
AU  - Kimber Paschall Richter
PY  - 2003
DO  - 10.1016/s0740-5472(03)00065-5
UR  - https://pubmed.ncbi.nlm.nih.gov/14512107/
ID  - 14512107
ER  -