Yaremchuk, V., and L. Slivinska. “Prevention of Hepatosis in Laying Hens Using Hepatoprotectors Hep-A-Stress and Hepasan-VS”. Ukrainian Journal of Veterinary and Agricultural Sciences 3, no. 3 (August 4, 2020): 8-14. Accessed May 24, 2022. https://ujvas.com.ua/index.php/journal/article/view/64.