5Brazzelli M,Cruickshank M,Kilonzo M, et al. Clinical effectivenessand cost - effectiveness of cholecystectomy compared with observation/conservative management for preventing recurrent symptoms and compli-cations in adults presenting with uncomplicated symptomatic gallstones orcholecystitis: a systematic review and economic evaluation [ J]: HealthTechnol Assess, 2014, 18 (55): 1 -102.
6Yeung SM, Shiu AT, Martin CR, et al. Translation and validation ofthe Chinese version of the Gastrointestinal Quality of Life Index in pa-tients with gastric tumor [J]: J Psychosom Res, 2006 , 61 (4): 469-477.
7Eypasch E,Williams JI,Wood - Dauphinee S, et al. GastrointestinalQuality of Life Index : development,validation and application of a newinstrument [ J]: Br J Surg, 1995,82 (2) : 216 -222.
8Stewart M. The Medical Outcomes Study 36 - item short - form healthsurvey (SF -36) [J]: Aust J Physiother, 2007, 53 (3) : 208.
9Johner A, Raymakers A, Wiseman SM. Cost utility of early versus de-layed laparoscopic cholecystectomy for acute cholecystitis [ J ]: SurgEndosc, 2013,27 (1): 256 -262.
