Shi, Y. -F., P. -T. Cheung, and C. -C. Fong, et al. 2010. “Effect of a Porcine Liver Peptide Extract on TGF-β Induced Activation of Hepatic Stellate Cells”. Progress in Nutrition 12 (1): 37-45. https://mattioli1885journals.com/index.php/progressinnutrition/article/view/1009.