M. V. Vusik
Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Russia, Tomsk 5, Kooperativny Street, 634009-Tomsk
Russian Federation

MD, DSc, Leading Researcher, Endoscopic Department, Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences (Tomsk, Russian Federation)

R. I. Pleshko
Siberian State Medical University, Russia, Tomsk
Russian Federation

MD, DSc, Professor of Department of Morphology and General Pathology, Siberian State Medical University (Tomsk, Russian Federation)

T. V. Avdeenko
Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Russia, Tomsk 5, Kooperativny Street, 634009-Tomsk
Russian Federation

MD, PhD, Physician, Endoscopy Department, Cancer Research Institute, Tomsk National Research Medical Center the Russian Academy of Sciences (Tomsk, Russian Federation)

O. V. Cheremisina
Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Russia, Tomsk 5, Kooperativny Street, 634009-Tomsk
Russian Federation

MD, DSc, Head of Endoscopy Department, Cancer Research Institute, Tomsk National Research Medical Center the Russian Academy of Sciences (Tomsk, Russian Federation)