D.А. Chizhikov - Surgeon, Post-graduate Student, Establishment of Health Care «Gorokhoveckaja CRH». E-mail: Dmach@yandex.ru L.В. Fomin - Post-graduate Student, GBOU TLU Novgorod state Medical Academy of the Health Ministry of the Russian Federation. E-mail: reff@pochta.ru V.I. Borisov - Dr. Sc. (Med.), Professor, GBOU TLU Novgorod State Medical Academy of the Health Ministry of the Russian Federation. E-mail: viborissov@mail.ru

N.T. Abdullaev - Ph. D. (Eng.), Associate Professor, Department «Biomedical Equipment» , Azerbaijan Technical University (Baku). E-mail: a.namik46@mail.ru K.Sh. Ismailova - Ph. D. (Eng.), Associate Professor, Azerbaijan State Oil Academy (Baku) M.I. Kerimova - Assistant, Azerbaijan State Oil Academy (Baku)