Pogozhikh, D. N., O. A. Nardid, and E. D. Rozanova. “Effect of Water-Saline Extracts of Frozen Placenta on Structure Peculiarities of Erythrocytes”. Problems of Cryobiology and Cryomedicine, vol. 15, no. 4, Dec. 2005, p. 731, https://journal.cryo.org.ua/index.php/probl-cryobiol-cryomed/article/view/1239.