L. A. Ozolinya
Pirogov Russian National Research Medical University
Russian Federation

Lyudmila A. Ozolinya - Dr. of Sci. (Med.), Professor of the Department of Obstetrics and Gynecology, Faculty of Medicine.

1, Ostrovityanov St., Moscow, 117997

T. N. Savchenko
Pirogov Russian National Research Medical University
Russian Federation

Tatyana N. Savchenko - Dr. of Sci. (Med.), Professor of the Department of Obstetrics and Gynecology, Faculty of Medicine.

1, Ostrovityanov St., Moscow, 117997

M. S. Safonina
Pirogov Russian National Research Medical University
Russian Federation

Marina S. Safonina - 4^th year student of the Faculty of Medicine.

1, Ostrovityanov St., Moscow, 117997

A. V. Overko
Pirogov Russian National Research Medical University
Russian Federation

Aleksey V. Overko - 4^th year student of the Faculty of Medicine.

1, Ostrovityanov St., Moscow 117997