Poudel, R., Adhikari, S.K., Basnet, S., Acharya, A. and Pokhrel, S. 2018. Unusual Case of Retropancreatic Mass Involving Portal Vein. Journal of Universal College of Medical Sciences. 5, 2 (Feb. 2018), 49–52. DOI:https://doi.org/10.3126/jucms.v5i2.19166.