M.R. Alexandrova - Ph.D. (Med.), Associate Professor, The Department of hospital therapy with course of clinical laboratory diagnostics, of the Medical Institute of the PFUR (Moscow) E-mail: 9166858759@bk.ru L.V. Bychkova - Ph.D. (Med.), Associate Professor, The Department of hospital therapy with course of clinical laboratory diagnostics, of the Medical Institute of the PFUR (Moscow) E-mail: lvb57@bk.ru K.O. Vorontsova - Intern, The Department of hospital therapy with course of clinical laboratory diagnostics, of the Medical Institute of the PFUR (Moscow) A.I. Kondratenko - Therapist, State budget institution of healthcare City clinical hospital named after S.S. Yudin (Moscow) T.U. Overchenko - Therapist, State budget institution of healthcare City clinical hospital named after S.S. Yudin (Moscow)