1. National Institute of Health Consensus Development Conference Statement (1992) NIH releases consensus statement on gallstones, bile duct stones and laparoscopic cholecystectomy. Am Fam Physician. 46(5):1571–1574
2. Keus F, de Jong JA, Gooszen HG, van Laarhoven CJ (2006) Laparoscopic versus open cholecystectomy for patients with symptomatic cholecystolithiasis. Cochrane Database Syst Rev 4:CD006231
3. Gurusamy KS, Vaughan J, Rossi M, Davidson BR (2014) Fewer-than-four ports versus four ports for laparoscopic cholecystectomy. Cochrane Database Syst Rev 2:Cd007109
4. Markar SR, Karthikesalingam A, Thrumurthy S, Muirhead L, Kinross J, Paraskeva P (2012) Single-incision laparoscopic surgery (SILS) versus conventional multiport cholecystectomy: systematic review and meta-analysis. Surg Endosc 26(5):1205–1213
5. Fransen S, Stassen L, Bouvy N (2012) Single incision laparoscopic cholecystectomy: a review on the complications. J Minim Access Surg 1:1–5