TY  - RPRT
TI  - Ulcerative colitis in the elderly.
AU  - R Zeman
AU  - M Burrell
AU  - J A Gold
PY  - 1980
DO  - 10.2214/ajr.135.1.164
UR  - https://pubmed.ncbi.nlm.nih.gov/6771985/
ID  - 6771985
ER  -