Timon, V. V., Petrenko, T. F., & Goncharuk, E. I. (2007). Cryopreservation of Human Fetal Fibroblast Culture. Problems of Cryobiology and Cryomedicine, 17(1), 80–85. Retrieved from http://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/535