TY  - RPRT
TI  - Cigarette smoking and ulcerative colitis: a case-control study.
AU  - M D Silverstein
AU  - B A Lashner
AU  - S B Hanauer
PY  - 1994
DO  - 10.1016/s0025-6196(12)61637-1
UR  - https://pubmed.ncbi.nlm.nih.gov/8170192/
ID  - 8170192
ER  -