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