Rodionova, V. L., N. N. Chub, and T. Yu. Schegoleva. 2008. “Effect of Epinephrine on Human Spermatozoa Motility at Low Temperature Preservation Stages”. Problems of Cryobiology and Cryomedicine 18 (1):54-57. http://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/449.