Retrospective Study
Copyright ©The Author(s) 2015.
World J Gastroenterol. May 21, 2015; 21(19): 5918-5925
Published online May 21, 2015. doi: 10.3748/wjg.v21.i19.5918
Figure 1
Figure 1 Study flow diagram. CBD: Common bile duct; NKF: Needle-knife fistulotomy; DGT: Double-guidewire technique.