Galchenko, S. E. “Extracts of Cryopreserved Fragments of Xenoorgans: Procurement and Biological Effect”. Problems of Cryobiology and Cryomedicine 15, no. 3 (September 25, 2005): 403–406. Accessed May 1, 2024. http://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/1142.