Oter V, Yalcin M, Tolga Kafadar M, Oter S. The results of perforated peptic ulcer surgery; A single center experience of 86 patients . Ann Med Res . 2021;25(2):0189-0192. Accessed September 16, 2026. http://www.annalsmedres.org/index.php/aomr/article/view/1514