G.A. IGNATENKO1, S.YA. YAROSHENKO1, E.S. MIKHALEVА2  1M. Gorky Donetsk State Medical University, Donetsk, Donetsk People’s Republic 2Central City Clinical Hospital № 3 of Donetsk, Donetsk, Donetsk People’s Republic Contact details: Yaroshenko S.Ya. — MD, Associate Professor, Professor of the Department of Pediatric Propaedeutics Address: 16 prospekt Ilyicha, 283003 Donetsk, Russian Federation, tel.: +7-949-362-65-15, e-mail: yaroshenkosy@yandex.ru […]