Chandail, V. S., S. K. Kotwal, S. Koul, R. Gupta, and A. Mahajan. “Non-Invasive Markers for Prediction of Varices in Patients With Portal Hypertension”. International Journal of Research in Medical Sciences, vol. 5, no. 3, Feb. 2017, pp. 1007-10, doi:10.18203/2320-6012.ijrms20170652.