SANGWAN, VANDANA, et al. “B-Mode and Doppler Ultrasonography of Cranial Epigastric Vein in Healthy and Diseased Cows and Buffaloes”. The Indian Journal of Animal Sciences, vol. 89, no. 3, Mar. 2019, pp. 238–245, https://doi.org/10.56093/ijans.v89i3.88033.