Intraperitoneal contamination index (Hajibandeh index) predicts nature of peritoneal contamination and risk of postoperative mortality in patients with acute abdominal pathology: a prospective multicentre cohort study. - Hajibandeh S; Shah J; Murali S; Stephanos M; Ibrahim S; Asqalan A; Mithany R; Wickramasekara N; Mansour M (International journal of colorectal disease, 2021)