1. Department of Obstetrics, Gynecology and Perinatology, I.M. Sechenov First Moscow State Medical University (Sechenov University), B. Pirogovskaya 2-4, 119991 Moscow, Russia
2. Centralized Laboratory Diagnostic Service, I.M. Sechenov First Moscow State Medical University (Sechenov University), B. Pirogovskaya 2-4, 119991 Moscow, Russia