D. V. Kharitonov
Tula State University; Tula Children’s Regional Clinical Hospital
Russian Federation

Dmitry V. Kharitonov, Hospital Chief Executive Officer; Lecturer in the Pediatrics Department 

92 Lenin Avenue, Tula, 300012, Russia

39 Bondarenko Str., Tula, 300010, Russia 

V. G. Sapozhnikov
Tula State University
Russian Federation

Vladimir G. Sapozhnikov, Doctor of Medical Sciences, prof., Head of the Pediatrics Department 

92 Lenin Avenue, Tula, 300012, Russia

L. A. Kharitonova
Pirogov Russian National Research Medical University
Russian Federation

Lyubov A. Kharitonova, MD, Professor, Head of the Department of Pediatrics with infectious diseases in children of the Faculty of Continuing Professional Education

Scopus Author ID: 7004072783 

1, Ostrovitianova str. Moscow, 117997, Russia 

S. V. Savin
Tula Children’s Regional Clinical Hospital
Russian Federation

Sergey V. Savin, resident doctor of the surgical Department 

 39 Bondarenko Str., Tula, 300010, Russia 

A. V. Weiss
Tula Children’s Regional Clinical Hospital
Russian Federation

 Andrian V. Weiss, Head of the Surgical Department 

 39 Bondarenko Str., Tula, 300010, Russia 

N. V. Osiptsov
Tula Children’s Regional Clinical Hospital
Russian Federation

Nikolay V. Osiptsov, Head of the Endoscopic Department 

 39 Bondarenko Str., Tula, 300010, Russia 

Yu. I. Nikishina
Tula Children’s Regional Clinical Hospital
Russian Federation

Yulia I. Nikishina, attending physician of the gastroenterology Department 

 39 Bondarenko Str., Tula, 300010, Russia