N. A. Trufanova, Y. A. Petrenko, and A. Y. Petrenko, “Effect of Cryopreservation on Viability, Immunophenotype and Differentiation Properties of Mesenchymal Stromal Cells of Early Organogenetic Stage”, Probl Cryobiol Cryomed, vol. 20, no. 2, pp. 135–144, Jun. 2010.