Коломбет, Екатерина Валерьевна, et al. “CONGENITAL MALFORMATIONS OF THE FETUS, INCOMPATIBLE WITH LIFE, STRUCTURE, THEIR COMBINATION WITH CHANGES IN THE PLACENTA”. Mother and Baby in Kuzbass, vol. 19, no. 1, Jan. 2018, pp. 8-11, https://www.mednauki.ru/index.php/MD/article/view/178.