Rozanova, S. L., I. F. Kovalenko, and O. A. Nardid. “Freezing Effect on Anti-Aging Efficiency of Human Placenta Extract Under Hypothermic Storage of Red Blood Cells”. Problems of Cryobiology and Cryomedicine, vol. 18, no. 1, May 2008, pp. 37-40, https://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/446.