1. Institute of Medicine, Ecology, and Physical Culture, Ulyanovsk State University
2. Institute of Medicine, Ecology, and Physical Culture, Ulyanovsk State University;
3. V.I. Kulakov National Medical Research Center for Obstetrics, Gynecology, and Perinatology, Ministry of Health of Russia; Russian Scientific Center of Roentgen Radiology, Ministry of Health of Russia
4. V.I. Kulakov National Medical Research Center for Obstetrics, Gynecology, and Perinatology, Ministry of Health of Russia