1. Federal State Budgetary Educational Institution for Higher Education, Omsk State Medical University Ministry of Public Health, Omsk, Russian Federation
2. Department of Obstetrics and Gynecology and Centre for Perinatal and Reproductive Medicine, University of Perugia, Perugia, Italy
3. Altai Regional State Clinical Perinatal Centre, Barnaul, Russia
4. Federal State Budgetary Educational Institution of Higher Education, Altai State Medical University of Ministry of Health of Russian Federation, Barnaul, Russia