RT Journal Article SR Electronic T1 Cost–utility analysis of early versus delayed laparoscopic cholecystectomy for acute cholecystitis JF Canadian Journal of Surgery JO CAN J SURG FD Canadian Medical Association SP 204 OP 206 DO 10.1503/cjs.012012 VO 55 IS 3 A1 Elijah Dixon A1 Dennis L. Fowler A1 Gabriela Ghitulescu A1 , YR 2012 UL http://canjsurg.ca/content/55/3/204.abstract