1. Filatov Clinical Institute of Children’s Health, Sechenov First Moscow State Medical University, Moscow 119435, Russia
2. Russian Medical Academy of Continuous Professional Education, Moscow 123242, Russia
3. Department of Pediatrics, Faculty of Advanced Training and Professional Retraining, Novosibirsk State Medical University, Novosibirsk 630091, Russia
4. Pulmonology Department, Rostov Regional Children’s Clinical Hospital, Rostov 344015, Russia
5. Department of Pediatrics, Rostov State Medical University, Rostov 344022, Russia