Kostina , Ivanna, and Oleksandr Pakhomov. “Use of Polyethylene Oxide and Hydroxyethyl Starch As Serum Substitute for Cryopreservation of Mouse Testis Cells”. Problems of Cryobiology and Cryomedicine 30, no. 3 (September 23, 2020): 296. Accessed April 25, 2024. https://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/1674.