A. V. Kosulin
Saint-Petersburg State Pediatric Medical University 2 Litovskaya str., Saint-Petersburg, 194100, Russia
Russian Federation

assistant professor, Department of Operative Surgery and Topographic Anatomy n.a. F.I. Valker

D. V. Elyakin
Saint-Petersburg State Pediatric Medical University 2 Litovskaya str., Saint-Petersburg, 194100, Russia
Russian Federation

pediatric surgeon, Surgical Department No. 2

L. A. Kornievskiy
Saint-Petersburg State Pediatric Medical Universit 2 Litovskaya str., Saint-Petersburg, 194100, Russia
Russian Federation

assistant professor Department of Otorhinolaryngology,

I. A. Bulatova
Saint-Petersburg State Pediatric Medical University 2 Litovskaya str., Saint-Petersburg, 194100, Russia
Russian Federation

MD, PhD, associate professor, Department of Operative Surgery and Topographic Anatomy n.a. F.I. Valker

A. Yu. Mushkin
Saint-Petersburg Research Institute of Phthisiopulmonology; Pavlov First Saint Petersburg State Medical University 32 Politekhnicheskaya str., Saint-Petersburg, 194064, Russia; 6–8 Lva Tolstogo str., Saint-Petersburg, 197022, Russia
Russian Federation

DMSc, Prof., chief researcher, Head of the Scientific and Clinical Centre for Spinal Pathology, Head of the Clinic of Pediatric Surgery and Orthopedics; Professor of the Department of traumatology and orthopedics