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 18, no. 1 (May 23, 2008): 37–40. Accessed April 25, 2024. http://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/446.