TY  - RPRT
TI  - Individual differences in difficulty quitting smoking.
AU  - P Hajek
PY  - 1991
DO  - 10.1111/j.1360-0443.1991.tb01807.x
UR  - https://pubmed.ncbi.nlm.nih.gov/1859918/
ID  - 1859918
ER  -