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1 Sahara K, "Variation in drain management among patients undergoing major hepatectomy" 25 : 962-970, 2021
2 Charlson M, "Validation of a combined comorbidity index" 47 : 1245-1251, 1994
3 Wakabayashi G, "Tokyo Guidelines 2018 : surgical management of acute cholecystitis : safe steps in laparoscopic cholecystectomy for acute cholecystitis(with videos)" 25 : 73-86, 2018
4 Yokoe M, "Tokyo Guidelines 2018 : diagnostic criteria and severity grading of acute cholecystitis(with videos)" 25 : 41-54, 2018
5 Bugiantella W, "To drain or not to drain elective uncomplicated laparoscopic cholecystectomy? A systematic review and meta-analysis" 21 : 787-794, 2014
6 Park JS, "The role of abdominal drainage to prevent of intra-abdominal complications after laparoscopic cholecystectomy for acute cholecystitis : prospective randomized trial" 29 : 453-457, 2015
7 Clavien PA, "The Clavien-Dindo classification of surgical complications : five-year experience" 250 : 187-196, 2009
8 Jammer I, "Standards for definitions and use of outcome measures for clinical effectiveness research in perioperative medicine : European Perioperative Clinical Outcome(EPCO)definitions : a statement from the ESA-ESICM joint taskforce on perioperative outcome measures" 32 : 88-105, 2015
9 Picchio M, "Prophylactic drainage after laparoscopic cholecystectomy for acute cholecystitis : a systematic review and meta-analysis" 71 : 247-254, 2019
10 Lyu Y, "Peritoneal drainage or no drainage after pancreaticoduodenectomy and/or distal pancreatectomy : a meta-analysis and systematic review" 34 : 4991-5005, 2020
11 Picchio M, "Meta-analysis of drainage versus no drainage after laparoscopic cholecystectomy" 18 : e2014-, 2014
12 Kim EY, "Is routine drain insertion after laparoscopic cholecystectomy for acute cholecystitis beneficial? A multicenter, prospective randomized controlled trial" 22 : 551-557, 2015
13 Anweier N, "Is routine abdominal drainage necessary for patients undergoing elective hepatectomy? A protocol for systematic review and meta-analysis" 100 : e24689-, 2021
14 Wong CS, "Intra-abdominal drainage for laparoscopic cholecystectomy : a systematic review and metaanalysis" 23 (23): 87-96, 2015
15 김국현 ; 김태년, "Endoscopic Management of Bile Leakage after Cholecystectomy:A Single-Center Experience for 12 Years" 대한소화기내시경학회 47 (47): 248-253, 2014
16 Dai M, "Early drain removal is safe in patients with low or intermediate risk of pancreatic fistula after pancreaticoduodenectomy : a multicenter, randomized controlled trial" 275 : e307-e314, 2022
17 Seykora TF, "Drain management following distal pancreatectomy : characterization of contemporary practice and impact of early removal" 272 : 1110-1117, 2020
18 Lucarelli P, "Drain after laparoscopic cholecystectomy for acute calculous cholecystitis. A pilot randomized study" 77 (77): 288-292, 2015
19 Strasberg SM, "Clinical practice. Acute calculous cholecystitis" 358 : 2804-2811, 2008
20 Berríos-Torres SI, "Centers for Disease Control and Prevention guideline for the prevention of surgical site infection, 2017" 152 : 784-791, 2017
21 Masashi Utsumi, "C-reactive protein to albumin ratio predicts difficult laparoscopic cholecystectomy in patients with acute cholecystitis diagnosed according to the Tokyo Guidelines 2018" Wiley 15 (15): 487-494, 2022
22 Ban KA, "American College of Surgeons and Surgical Infection Society : surgical site infection guidelines, 2016update" 224 : 59-74, 2017
23 Yong L, "Abdominal drainage versus no abdominal drainage for laparoscopic cholecystectomy : a systematic review with metaanalysis and trial sequential analysis" 36 (36): 358-368, 2016
24 Li Z, "Abdominal drainage to prevent intra-peritoneal abscess after open appendectomy for complicated appendicitis" 5 : CD010168-, 2018