Zastavnyy, I., A. Yashchenko, I. Tkach, and O. Lutsyk. “Results of Scanning Electron Microscopy of Human Embryos Chorionic Villi During Early Pregnancy Miscarriage”. Biomedical and Biosocial Anthropology, no. 29, Oct. 2017, pp. 40-45, https://bba-journal.com/index.php/journal/article/view/282.