Retrospective Cohort Study
Copyright ©The Author(s) 2017.
World J Gastrointest Endosc. Apr 16, 2017; 9(4): 171-176
Published online Apr 16, 2017. doi: 10.4253/wjge.v9.i4.171
Figure 1
Figure 1 Exclusion criteria.
Figure 2
Figure 2 Post-sphincterotomy bleeding.