M.A. DAVYDOVA, G.V. SANTALOVA, E.S. GASILINA Samara State Medical University, 89 Chapaevskaya Str., Samara, Russian Federation, 443099 Davydova M.A. ― postgraduate student of the Department of departmental pediatrics, tel. +7-987-944-34-35, e-mail: mar6412@yandex.ru Santalova G.V. ― D. Med. Sc., Professor, Head of the Department of departmental pediatrics, tel. +7-960-825-32-54, e-mail: galina.santalova@mail.ru Gasilina E.S. ― D. Med. […]