1. Department of Obstetrics and Gynecology, School of Pediatric Medicine, St. Petersburg 194353, Russia
2. Valdman Institute of Pharmacology, Pavlov Medical University, St. Petersburg 197022, Russia
3. Sechenov Institute of Evolutionary Physiology and Biochemistry, 44 Torez Prospect, St. Petersburg 194223, Russia
4. Department of Obstetrics and Gynecology, University of Tennessee, Chattanooga, TN, USA