1. Department of Obstetrics and Gynecology with Course of Perinatology of the Medical Faculty, Medical Institute of the Russian University of Friendship of Peoples, Moscow, Russian Federation;
2. Department of Obstetrics and Gynecology, Medical Academy Named S. I. Georgievskiy of Vernadsky Crimean Federal University, Simferopol, Republic of Crimea, Russian Federation;
3. Reproduction and Genetics Center “NOVA CLINIC”, Moscow, Russian Federation