A.N. SHEVELOK1, 2  1M. Gorky Donetsk National Medical University, Donetsk 2 Institute of Urgent and Recovery Surgery named after V.K. Husak, Donetsk   Contact details: Shevelok A.N. — PhD (medicine), Associate Professor of the Department of Internal Diseases No. 3 Address: 16 Illicha avenue, Donetsk, Ukraine, 283003, tel.: +38 (050) 6420415, е-mail: a.shevelyok@mail.ru  The purpose — to […]