I. A. Esipova
Pirogov Russian National Research Medical University
Russian Federation

Irina A. Esipova – Cand. of Sci. (Med.), Associate Professor of the Department of Obstetrics and Gynecology named after Academician G.M. Savelyeva, Faculty of Pediatrics, Pirogov Russian National Research Medical University, Moscow. 
https://orcid.org/0000-0002-2130-5431

M. N. Bulanov
Regional Clinical Hospital; Yaroslav-the-Wise Novgorod State University
Russian Federation

Mikhail N. Bulanov – Doct. of Sci. (Med.), Head of Ultrasound Diagnostics Department, Regional Clinical Hospital, Vladimir; Professor, Division of Internal Medicine, Institute of Medical Education, Yaroslav-the-Wise Novgorod State University, Veliky Novgorod.
https://orcid.org/0000-0001-8295-768X

I. A. Krasnova
Pirogov Russian National Research Medical University
Russian Federation

Irina A. Krasnova – Doct. of Sci. (Med.), Professor, Professor of the Department of Obstetrics and Gynecology named after Academician G.M. Savelyeva, Faculty of Pediatrics, Pirogov Russian National Research Medical University, Moscow. 
https://orcid.org/0000-0002-6765-4127