N. A. Belykh
Ryazan State Medical University
Russian Federation

Nataliya Anatolyevna Belykh — Dr. Sci, Head of the Department of Faculty and Polyclinic Pediatrics

9 Vysokovol’tnaya Str., Ryazan, 390026

I. N. Lebedeva
Ryazan State Medical University
Russian Federation

Inna N. Lebedeva — Cand. Sci, Assistant Professor of the Department of Faculty and Polyclinic Pediatrics

9 Vysokovol’tnaya Str., Ryazan, 390026

I. V. Piznyur
Ryazan State Medical University
Russian Federation

Inna Vladimirovna Piznyur — Assistant Professor of the Department of Faculty and Polyclinic Pediatrics

9 Vysokovol’tnaya Str., Ryazan, 390026

P. O. Kotova
Ryazan State Medical University
Russian Federation

Polina Olegovna Kotova — resident of the Department of Faculty and Polyclinic Pediatrics

9 Vysokovol’tnaya Str., Ryazan, 390026

Yu. V. Deeva
Ryazan State Medical University
Russian Federation

Yulia Vitalievna Deeva — Assistant Professor of the Department of Faculty and Polyclinic Pediatrics

9 Vysokovol’tnaya Str., Ryazan, 390026