O. V. Pishko, E. I. Smolyaninova, I. F. Kovalenko, and L. F. Rozanov, “Membrane Permeability of Murine Oocytes and Embryos for 1,2-Propane Diol and Damaging Effect of its Concentrated Solutions”, Probl Cryobiol Cryomed, no. 4, pp. 3–7, Dec. 2004.