Kovalenko V.M., academician of NAMS of Ukraine, D. of M.S., professor, Khimion L.V., D. of M.S., Yaschenko O.B. C. of M.S., Danyluk S.V. C. of M.S.,
P.L. Shupyk National Medical Academy of Postgraduate Education, Ministry of Health of Ukraine, Guidelines, Kyiv, 2014