TY  - RPRT
TI  - Ulcerative colitis and pregnancy.
AU  - C P Willoughby
AU  - S C Truelove
PY  - 1980
DO  - 10.1136/gut.21.6.469
UR  - https://pubmed.ncbi.nlm.nih.gov/6107262/
ID  - 6107262
ER  -