S.V. MALTSEV Kazan State Medical Academy — Branch Campus of the RMACPE MOH Russia For correspondence: Maltsev S.V. ― D. Med. Sc., Professor, Head of the Department of Pediatrics and Neonatology of the Kazan State Medical Academy — Branch Campus of the RMACPE MOH Russia, 36 Butlerov Str., Kazan, Russian Federation, 420012 The article presents […]