TY  - RPRT
TI  - Perforated peptic ulcer.
AU  - S S Chung
AU  - A K Li
PY  - 1989
DO  - 10.1002/bjs.1800761039
UR  - https://pubmed.ncbi.nlm.nih.gov/2597958/
ID  - 2597958
ER  -