TY  - RPRT
TI  - Cigarette smoking and ulcerative colitis. A case control study.
AU  - D Lorusso
AU  - S Leo
AU  - G Misciagna
AU  - V Guerra
PY  - 1989
UR  - https://pubmed.ncbi.nlm.nih.gov/2807139/
ID  - 2807139
ER  -