A. A. Balushkina
National Medical Research Center of Obstetrics, Gynecology and Perinatology named after Academician V.I. Kulakov
Russian Federation

Anna A. Balushkina, Cand. of Sci. (Med.), Researcher

4, Oparina str., Moscow, 117997

V. L. Tyutyunnik
National Medical Research Center of Obstetrics, Gynecology and Perinatology named after Academician V.I. Kulakov
Russian Federation

Victor L. Tyutyunnik, Dr. of Sci. (Med.), Professor, Head of the 1st Obstetric Physiological Department

4, Oparina str., Moscow, 117997

N. E. Kan
National Medical Research Center of Obstetrics, Gynecology and Perinatology named after Academician V.I. Kulakov
Russian Federation

Natal’ya E. Kan, Dr. of Sci. (Med.), Chair for Obstetrics and Gynecology

4, Oparina str., Moscow, 117997

D. N. Kokoeva
National Medical Research Center of Obstetrics, Gynecology and Perinatology named after Academician V.I. Kulakov
Russian Federation

Diana N. Kokoeva, a postgraduate student

4, Oparina str., Moscow, 117997