Gurung, R., B. Purbey, R. Koju, and T. Bedi. “Endoscopic Retrograde Cholangiopancreatography at Dhulikhel Hospital: Outcome Analysis”. Kathmandu University Medical Journal, vol. 12, no. 1, Oct. 2015, pp. 55-59, doi:10.3126/kumj.v12i1.13640.