Retrospective Study
Copyright ©The Author(s) 2021.
World J Clin Cases. Jun 16, 2021; 9(17): 4166-4177
Published online Jun 16, 2021. doi: 10.12998/wjcc.v9.i17.4166
Figure 1
Figure 1 Study flow chart. A: Experienced endoscopist; B: Less experienced endoscopist. ERCP: Endoscopic retrograde cholangiopancreatography; NKF: Needle-knife fistulotomy.