Full Professor; Director, Veltischev Research and Clinical Institute for Pediatrics and Pediatric Surgery, N.I. Pirogov Russian National Research Medical University (Pirogov University), Ministry of Health of the Russian Federation; Chief Freelance Pediatric Specialist in Surgery, Ministry of Health of the Russian Federation; Head, Department of Innovative Pediatrics and Pediatric Surgery, Institute of Continuing Education and Professional Development, N. I. Pirogov Russian National Research Medical University (Pirogov University), Ministry of Health of the Russian Federation