Ahmad, K., S. Khanna, A. Sundas, R. Rauniyar, R. Koirala, and M. Gupta. “Duplex Sonographic Evaluation of Hepatic Vasculature in Cirrhosis”. Nepal Journal of Medical Sciences, vol. 2, no. 1, Feb. 2013, pp. 13-19, doi:10.3126/njms.v2i1.7645.