L. D. Belotserkovtseva
Medical Institute of Surgut State University
Russian Federation

doctor of medical sciences, professor, head of the department of obstetrics, gynecology and perinatology

628412, Surgut, Lenin av., 1

L. V. Kovalenko
Medical Institute of Surgut State University
Russian Federation

doctor of medical sciences, professor, head of the department of general pathology and pathophysiology

628412, Surgut, Lenin av., 1

D. P. Telitsyn
Medical Institute of Surgut State University
Russian Federation

postgraduate student of the department of obstetrics and gynecology

628412, Surgut, Lenin av., 1