Upadhyay, Hari Prasad, Department of Community Medicine, College of Medicine Science, Bharatpur, Chitwan, Nepal, Nepal

• Journal of Nepal Health Research Council Vol. 18 No. 4 (2020): Vol. 18 No. 4 Issue 49 Oct-Dec 2020 - Original Article
  Effectiveness of Fentanyl in Facilitating Cannulation of Ampulla of Vater during Endoscopic Retrograde Cholangiopancreatography
  Abstract  PDF