Gallbladder perforation: Clinical presentation, predisposing factors, and surgical outcomes of 46 patients - DERİCİ, Hayrullah and KAMER, Erdinç and KARA, Cemal and ÜNALP, Haluk Recai and TANSUĞ, Tuğrul and BOZDAĞ, Ali Doğan and NAZLI, Okay (Turkish Journal of Gastroenterology, 2011)