Tang, Z., Yang, Y., Yang, Z., Meng, W., & Li, X. (2018). Early precut sphincterotomy does not increase the risk of adverse events for patients with difficult biliary access: A systematic review of randomized clinical trials with meta-analysis and trial sequential analysis. Medicine (Baltimore).

Tang, Zengwei, Yuan Yang, Zhangfu Yang, Wenbo Meng, and Xun Li. "Early Precut Sphincterotomy Does Not Increase the Risk of Adverse Events for Patients With Difficult Biliary Access: A Systematic Review of Randomized Clinical Trials With Meta-analysis and Trial Sequential Analysis." Medicine (Baltimore) 2018.

Tang, Zengwei, et al. "Early Precut Sphincterotomy Does Not Increase the Risk of Adverse Events for Patients With Difficult Biliary Access: A Systematic Review of Randomized Clinical Trials With Meta-analysis and Trial Sequential Analysis." Medicine (Baltimore) 2018.