D. V. Kuzmich
City Perinatal Center No. 1; St. Petersburg State Pediatric Medical University
Россия

Darya V. Kuzmich, Obstetrician-gynecologist, SCity Perinatal Center No. 1; PhD studentof the Department of Obstetrics and Gynecology, St. Petersburg State Pediatric Medical University 

6 Solidarnosti Ave., Saint Petersburg, 193312;
2 Litovskaya str., St. Petersburg, 194100

N. N. Rukhliada
St. Petersburg State Pediatric Medical University
Россия

Nikolai N. Rukhliada, Dr. of Sci. (Med.), Obstetrician-gynecologist, Professor of the Department of Obstetrics and Gynecology

2 Litovskaya str., St. Petersburg, 194100

S. N. Gaidukov
St. Petersburg State Pediatric Medical University
Россия

Sergey N. Gaidukov, Dr. of Sci. (Med.), Obstetrician-gynecologist, Professor of the Department of Obstetrics and Gynecology

2 Litovskaya str., St. Petersburg, 194100

K. G. Tomaeva
North Osetian State Medical Academy; St. Petersburg State Pediatric Medical University
Россия

Kristina G. Tomaeva, Cand. of Sci. (Med.), Obstetrician-gynecologist, FNorth Osetian State Medical Academy; Assistant of the Department of Obstetrics and Gynecology, St. Petersburg State Pediatric Medical University

40 Pushkinskaya str., Vladikavkaz, 362019; 
2 Litovskaya str., St. Petersburg, 194100