[1]
Pun, A., Dhungana, A., Pariyar, J. and Upadhyay, H.P. 2021. Effectiveness of Fentanyl in Facilitating Cannulation of Ampulla of Vater during Endoscopic Retrograde Cholangiopancreatography. Journal of Nepal Health Research Council. 18, 4 (Jan. 2021), 753-757. DOI:https://doi.org/10.33314/jnhrc.v18i4.3267.