N.V. BOLOTOVA, N.YU. FILINA, K.A. CHEREDNIKOVA Saratov State Medical University named after V.I. Razumovsky, 137 Bolshaya Sadovaya Str., Saratov, Russian Federation, 410054 Bolotova N.V. — D. Sc. (medicine), Professor, Head of the Department of Pediatric Diseases, Pediatric Endocrinology and Diabetology, e-mail: [email protected], ORCID ID: 0000-0002-8148-526X Filina N.Yu. — D. Sc. (medicine), Associate Professor of the Department of […]