TY  - RPRT
TI  - Perforated duodenal ulcer.
AU  - S L Wangensteen
AU  - R C Wray
AU  - G T Golden
PY  - 1972
DO  - 10.1016/0002-9610(72)90216-4
UR  - https://pubmed.ncbi.nlm.nih.gov/5025290/
ID  - 5025290
ER  -