15. Kopeika EF, Petrushko MP, Piniaiev VI, Yurchuk TO, Pavlovich OV, Mikson KB, Butskyi KI, Hapon HO, Puhovkin AY. Cryopreservation of Reproductive Cells and Embryos of Laboratory, Agricultural and Wild Animals. Probl Cryobiol Cryomed. 2019Mar.25;29(1):3-18.
http://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/147716. Pogozhykh O, Prokopyuk V, Figueiredo C, Pogozhykh D. Placenta and Placental Derivatives in Regenerative Therapies: Experimental Studies, History, and Prospects. Stem Cells Int. 2018 Jan 18;2018:4837930. doi: 10.1155/2018/4837930. PMID: 29535770; PMCID: PMC5822788.