Huaijantug, Somkiat, et al. “Quantitative Ultrasound Elastography and Serum Ferritin Level in Dogs With Liver Tumors”. Journal of Advanced Veterinary and Animal Research, vol. 7, no. 4, Aug. 2020, pp. 575-84, https://banglajol.info/index.php/JAVAR/article/view/75767.