@article{article821737a6,
title   = {Comparison between endoscopic sphincterotomy vs endoscopic sphincterotomy associated with balloon dilation for removal of bile duct stones: A systematic review and meta-analysis based on randomized controlled trials},
author = {Clemente Junior, Cesar Capel de and Sakai, Paulo},
year = {2018},
doi = {10.4253/wjge.v10.i8.130},
journal   = {World journal of gastrointestinal endoscopy}
}