L. V. Tkachenko
Volgograd State Medical University
Russian Federation

Tkachenko Lyudmila V., DM Sci (habil.), professor at Dept of Obstetrics and Gynecology,

Volgograd.

T. A. Verovskaya
Volgograd State Medical University
Russian Federation

Verovskaya Tatyana A., chief physician of the Regional Perinatal Center No. 2, chief freelance specialist in obstetrics and gynecology of the Volgograd Region Health Committee,

Volgograd.

N. I. Sviridova
Volgograd State Medical University
Russian Federation

Sviridova Natalia I., DM Sci (habil.), associate professor, head of Dept of Obstetrics and Gynecology, Institute of Continuing Medical and Pharmaceutical Education,

Volgograd.

T. I. Kostenko
Volgograd State Medical University
Russian Federation

Kostenko Tatyana I., PhD Med, associate professor at Department of Obstetrics and Gynecology, Institute of Continuing Medical and Pharmaceutical Education,

Volgograd.

E. A. Homich
Volgograd State Medical University
Russian Federation

Homich Elena A., postgraduate student at Dept of Obstetrics and Gynecology, Institute of Continuing Medical and Pharmaceutical Education,

Volgograd.