A. N. Goltsev, E. D. Lutsenko, and M. V. Ostankov, “Effect of Different Cryopreservation Regimens on Manifestation of Immune Modulating Activity of Placenta at Development of Adjuvant Artritis”, Probl Cryobiol Cryomed, vol. 18, no. 4, pp. 456–458, Dec. 2008.