1. D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology
2. D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology; Saint Petersburg State Institute of Technology (Technical University); Saint Petersburg State University
3. D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology; Maternity hospital № 10
4. D.O. Ott Research Institute of Obstetrics, Gynecology and Reproductology; Saint Petersburg State University; Surgut State University