M. M. Gurova
Consultative and diagnostic center for children; St. Petersburg State Pediatric Medical University; Belgorod State National Research University
Russian Federation

Margarita M. Gurova, Head of the Department of Abdominal Pathology with Endoscopy and Functional Diagnostics; Department of Propedeutics of Childhood Diseases with a course of general care, Doctor of Medical Sciences, Professor of the Department; Department of Pediatrics with a Course of Pediatric Surgery, Doctor of Medical Sciences, Professor of the Department

36, building 2, Oleko Dundycha st., St. Petersburg, 192289, Russia 

2 Lithuanian str., St. Petersburg, 194100, Russia

85 Victory st., Belgorod, 308015, Russia 

I. B. Sosnina
Consultative and diagnostic center for children
Russian Federation

 Irina B. Sosnina, chief physician

36, building 2, Oleko Dundycha st., St. Petersburg, 192289, Russia