Rudneva, Y. V., V. G. Babiychuk, E. A. Chernyavskaya, and V. V. Kulik. “State of Vegetative and Humoral Regulations of Cardiac Rhythm in Young and Aged Rats on Background of Rhythmic Extreme Cooling (–120°C) Combined With Application of Cord Blood Nucleated Cells”. Problems of Cryobiology and Cryomedicine, vol. 23, no. 4, Dec. 2013, pp. 318-25, http://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/317.