S. A. Karavaeva
North-West State Medical University named after I. I. Mechnikov; Children’s city multidisciplinary clinical specialized center for medical high technologies
Russian Federation

 Dr. of Sci. (Med.), Professor, Head of the Department of Pediatric Surgery;

Neonatologist Surgeon, 

Saint Petersburg

A. V. Podkamenev
Saint-Petersburg State Pediatric Medical University
Russian Federation

Dr. of Sci. (Med.), Chief Non-staff Pediatric Surgeon of the Ministry of Health of the Russian Federation, Professor of the Department of Surgical Diseases of Childhood,

Saint Petersburg

A. A. Skopetc
North-West State Medical University named after I. I. Mechnikov; Children’s city multidisciplinary clinical specialized center for medical high technologies
Russian Federation

Postgraduate Student of the Department of Pediatric Surgery,

Saint Petersburg