1. Research Institute of Pediatrics and Children’s Health in “Central Clinical Hospital of the Russian Academy of Sciences”; Pirogov Russian National Research Medical University; Belgorod National Research University
2. Research Institute of Pediatrics and Children’s Health in “Central Clinical Hospital of the Russian Academy of Sciences”; Pirogov Russian National Research Medical University
3. Research Institute of Pediatrics and Children’s Health in “Central Clinical Hospital of the Russian Academy of Sciences”
4. Pirogov Russian National Research Medical University
5. Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing
6. Central Research Institute of Epidemiology of the Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing