A. A. Kabanova
Vitebsk State Medical University
Belarus

Arina A. Kabanova - doctor of medical sciences.

210009, Vitebsk, Frunze st., 27

V. K. Okulich
Vitebsk State Medical University
Belarus

Vitaliy K. Okulich - candidate of medical sciences.

210009, Vitebsk, Frunze st., 27

V. N. Shut
Vitebsk State Technological University
Belarus

Victor N. Shut - doctor of physical and mathematical sciences, professor.

210038, Vitebsk, Moskovsky ave., 72

S. A. Kabanova
Vitebsk State Medical University
Belarus

Svetlana A. Kabanova - candidate of medical sciences.

210009, Vitebsk, Frunze st., 27