Bohara, TP, A Parajuli, GR Bajracharya, and MR Joshi. 2014. “Prevalence of Pancreaticobiliary Reflux in Symptomatic Cholelithiasis and Its Significance”. Journal of College of Medical Sciences-Nepal 9 (1):1-6. https://doi.org/10.3126/jcmsn.v9i1.9666.