TY  - RPRT
TI  - Perforated peptic ulcer.
AU  - Dorothy S Carlson
AU  - Ellen Pfadt
PY  - 2004
DO  - 10.1097/00152193-200412000-00062
UR  - https://pubmed.ncbi.nlm.nih.gov/15572948/
ID  - 15572948
ER  -