Kushnarev, A. A. “Xenotransplantation of Testis”. Problems of Cryobiology and Cryomedicine 15, no. 3 (September 25, 2005): 346–348. Accessed December 8, 2022. http://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/1129.