Kuznetsova, V. G., & Zhegunov, G. F. (2008). Effect of Extracts from Chicken Embryonic Tissues on Mice with Experimental Leucopenia. Problems of Cryobiology and Cryomedicine, 18(3), 328–331. Retrieved from http://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/403