Studying of biological activity of fraction less than 5 kD from cattle cord blood cryohaemolizate - A. K. Gulevskij; N. N. Moiseeva; E. S. Abakumova; Ju. Nikolchenko; I. I. Shchenjavskij; O. L. Gorina; A. V. Trifonova; E. G. Ivanov (Problems of cryobiology and cryomedicine, 2008)