M. Kh. Gurtsiyev
N.V. Sklifosovsky Research Institute for Emergency Medicine of the Moscow Health Department
Russian Federation

Endoscopist, Department of Endoscopy and Intraluminal Surgery,

3 Bolshaya Sukharevskaya Square, Moscow 129090

P. A. Yartsev
N.V. Sklifosovsky Research Institute for Emergency Medicine of the Moscow Health Department
Russian Federation

Doctor of Medical Sciences, Professor, Head of the Scientific Department of the Department of Emergency  Surgery, Endoscopy and Intensive Care,

3 Bolshaya Sukharevskaya Square, Moscow 129090

Yu. S. Teterin
N.V. Sklifosovsky Research Institute for Emergency Medicine of the Moscow Health Department
Russian Federation

Candidate of Medical Sciences, Head of the Department of Endoscopy and Intraluminal Surgery,

3 Bolshaya Sukharevskaya Square, Moscow 129090

A. M. Gasanov
N.V. Sklifosovsky Research Institute for Emergency Medicine of the Moscow Health Department
Russian Federation

Candidate of Medical Sciences, Senior Researcher, Department of Endoscopy and Intraluminal Surgery,

3 Bolshaya Sukharevskaya Square, Moscow 129090

S. Zh. Antonyan
N.V. Sklifosovsky Research Institute for Emergency Medicine of the Moscow Health Department
Russian Federation

Candidate of Medical Sciences, Senior Researcher of the Department of Emergency Surgery and Operative Oncology,

3 Bolshaya Sukharevskaya Square, Moscow 129090