ÇETİNKAYA, Hülya, Kadir BAHAR, Bahri AKDENİZ, and Ali ÖZDEN. 1993. “BENIGN PNEUMOPERITONEUM AND SUBCUTANEOUS EMPHYSEMA DUE TO THERAPEUTIC COLONOSCOPY”. Turkish Journal of Gastroenterology 4 (4):713-15. https://turkjgastroenterol.org/index.php/tjg/article/view/344.