@misc{indiciae536eac13923c, title = {Perforated peptic ulcer.}, author = {T B Hugh and M Donnellan and P A Fagan}, year = {1969}, doi = {10.5694/j.1326-5377.1969.tb107455.x}, url = {https://pubmed.ncbi.nlm.nih.gov/5352866/}, note = {Source identifier: 5352866} }