A.A. TYAZHEVA, D.V. PECHKUROV Samara State Medical University, 89 Chapaevskaya St., Samara, Russian Federation, 443099 Tyazheva A.A. — Cand. Med. Sc., Assistant Lecturer of the Pediatrics Department, tel. (846) 959-45-11, e-mail: [email protected] Pechkurov D.V. — D. Med. Sc., Professor of the Pediatrics Department, tel. (846) 959-45-11, e-mail: [email protected] The article presents the results of a […]