作者单位:Crimea State Medical S.I. Georgievsky University, Lenin Ave. 5/7, 95006 Simferopol, Ukraine[1]All-Russian Research Institute for Silviculture and Mechanization of Forestry, Institutskaya Street 15, Pushkino 141200, Russia[2]Taurida National V.I. Vernadsky University, Academician Vernadsky Ave. 4, 95007 Simferopol, Ukraine[3]