1. Bailey AA, Bourke MJ, Williams SJ, et al. A prospective randomized trial of cannulation technique in ERCP: effects on technical success and post-ERCP pancreatitis. Endoscopy. 2008; 40:296–301.
2. Varadarajulu S, Kilgore ML, Wilcox CM, et al. Relationship among hospital ERCP volume, length of stay, and technical outcomes. Gastrointest Endosc. 2006; 64:338–347.
3. Williams EJ, Taylor S, Fairclough P, et al. Are we meeting the standards set for endoscopy?: results of a large-scale prospective survey of endoscopic retrograde cholangio-pancreatograph practice. Gut. 2007; 56:821–829.
4. Freeman ML, DiSario JA, Nelson DB, et al. Risk factors for post-ERCP pancreatitis: a prospective, multicenter study. Gastrointest Endosc. 2001; 54:425–434.
5. Testoni PA, Mariani A, Giussani A, et al. Risk factors for post-ERCP pancreatitis in high- and low-volume centers and among expert and non-expert operators: a prospective multicenter study. Am J Gastroenterol. 2010; 105:1753–1761.
6. Op den Winkel M, Schirra J, et al. Biliary cannulation in endoscopic retrograde cholangiography: how to tackle the difficult papilla. Dig Dis. 2022; 40:85–96.
7. Tse F, Yuan Y, Moayyedi P, et al. Double-guidewire technique in difficult biliary cannulation for the prevention of post-ERCP pancreatitis: a systematic review and meta-analysis. Endoscopy. 2017; 49:15–26.
8. Facciorusso A, Ramai D, Gkolfakis P, et al. Comparative efficacy of different methods for difficult biliary cannulation in ERCP: systematic review and network meta-analysis. Gastrointest Endosc. 2022; 95:60–71.
9. Testoni PA, Mariani A, Aabakken L, et al. Papillary cannulation and sphincterotomy techniques at ERCP: European Society of Gastrointestinal Endoscopy (ESGE) Clinical Guideline. Endoscopy. 2016; 48:657–683.
10. Ryozawa S, Itoi T, Katanuma A, et al. Japan Gastroenterological Endoscopy Society guidelines for endoscopic sphincterotomy. Dig Endosc. 2018; 30:149–173.
11. Harewood GC, Baron TH. An assessment of the learning curve for precut biliary sphincterotomy. Am J Gastroenterol. 2002; 97:1708–1712.
12. Akaraviputh T, Lohsiriwat V, Swangsri J, et al. The learning curve for safety and success of precut sphincterotomy for therapeutic ERCP: a single endoscopist's experience. Endoscopy. 2008; 40:513–516.
13. Rossos PG, Kortan P, Haber G. Selective common bile duct cannulation can be simplified by the use of a standard papillotome. Gastrointest Endosc. 1993; 39:67–69.
14. Cortas GA, Mehta SN, Abraham NS, et al. Selective cannulation of the common bile duct: a prospective randomized trial comparing standard catheters with sphincterotomes. Gastrointest Endosc. 1999; 50:775–779.
15. Schwacha H, Allgaier HP, Deibert P, et al. A sphincterotome-based technique for selective transpapillary common bile duct cannulation. Gastrointest Endosc. 2000; 52:387–391.
16. Laasch HU, Tringali A, Wilbraham L, et al. Comparison of standard and steerable catheters for bile duct cannulation in ERCP. Endoscopy. 2003; 35:669–674.
17. Kurita A, Kudo Y, Yoshimura K, et al. Comparison between a rotatable sphincterotome and a conventional sphincterotome for selective bile duct cannulation. Endoscopy. 2019; 51:852–857.
18. Zhu F, Guan Y, Wang J. Efficacy and safety of the rotatable sphincterotome during ERCP in patients with prior Billroth II gastrectomy (with videos). Surg Endosc. 2021; 35:4849–4856.
19. Maluf-Filho F, Kumar A, Ferreria de Souza T, et al. Rotatable sphincterotome facilitates bile duct cannulation in patients with altered ampullary anatomy. Gastroenterol Hepatol (N Y). 2008; 4:59–62.
21. Cotton PB, Eisen GM, Aabakken L, et al. A lexicon for endoscopic adverse events: report of an ASGE workshop. Gastrointest Endosc. 2010; 71:446–454.
22. Okamoto T, Nakamura K, Yabuta M, et al. Retrograde endosonography-guided hepaticojejunostomy after failed rendezvous in a patient with Child’s resection. Endoscopy. 2022; 54:E131–E132.
23. Yoshida A, Minaga K, Takeda O, et al. Successful biliary cannulation using a novel rotatable sphincterotome in a patient with situs inversus totalis. Endoscopy. 2020; 52:E333–E334.
24. Matsubara S, Oka M, Nagoshi S. Rotatable sphincterotome as a salvage for guidewire manipulation in endoscopic ultrasound-guided hepaticogastrostomy. Dig Endosc. 2021; 33:e119–e120.
25. Takenaka M, Minaga K, Kamata K, et al. Efficacy of a modified double-guidewire technique using an uneven double lumen cannula (uneven method) in patients with surgically altered gastrointestinal anatomy (with video). Surg Endosc. 2020; 34:1432–1441.
26. Moxon DR, Hong K, Brown RD, et al. Selective intrahepatic ductal cannulation during ERCP with a sphincterotome. Gastrointest Endosc. 2003; 57:738–743.