Shabunin, S. V., G. A. Vostroilova, and I. E. Shabanov. “Screening of Biologically Active Agents Depending on Technological Parameters of Cryogenic Fractionation of Placenta”. Problems of Cryobiology and Cryomedicine 15, no. 3 (September 25, 2005): 306–309. Accessed March 29, 2024. http://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/1115.