THE SUBCUTANEOUS EMPHYSEMA AND RETROPERITONEAL PERFORATION CAUSED BY ENDOSCOPIC SPHINCTEROTOMY - YILMAZ, Uğur; ŞAHİN, Tülin; ÜLKER, Aysel; AKOĞLU, Musa; ŞENGÖR, Mehmet; OĞUZ, Perihan (Turkish Journal of Gastroenterology, 1993)