Babiychuk, L. A., P. M. Zubov, V. V. Ryazantsev, and O. L. Zubova. “Cord Blood Preservation Method With No Washing-Out: Estimation of Populations of Nucleated Cells”. Problems of Cryobiology and Cryomedicine, vol. 18, no. 3, Nov. 2008, pp. 348-51, http://journal.cryo.org.ua/index.php/probl-cryobiol-cryomed/article/view/408.