B. V. Sigua
North-Western State Medical University named after I. I. Mechnikov
Russian Federation

Sigua Badri V., Dr. of Sci. (Med), Professor of the Department of Faculty Surgery with the Course of Endoscopy named after I. I. Grekov

E. A. Zakharov
North-Western State Medical University named after I. I. Mechnikov
Russian Federation

Zakharov Evgeni A., Cand. of Sci. (Med), Assistant of the Department of Faculty Surgery with the Course of Endoscopy named after I. I. Grekov

E. L. Latariya
North-Western State Medical University named after I. I. Mechnikov
Russian Federation

Latariya Elgudzha L., Cand. of Sci. (Med), Associate Professor of the Department of Faculty Surgery with the Course of Endoscopy named after I. I. Grekov

O. B. Tcelykovskaia
North-Western State Medical University named after I. I. Mechnikov
Russian Federation

Tcelykovskaia Olesya B., Resident of the Department of Faculty Surgery with the Course of Endoscopy named after I. I. Grekov

A. A. Kurkov
North-Western State Medical University named after I. I. Mechnikov
Russian Federation

Kurkov Alexey A., Cand. of Sci. (Med), Assistant of the Department of Faculty Surgery with the Course of Endoscopy named after I. I. Grekov, Head of Surgical Department № 2

D. G. Berest
North-Western State Medical University named after I. I. Mechnikov
Russian Federation

Berest Dmitriy G., Cand. of Sci. (Med), Associate Professor of the Department of Faculty Surgery with the Course of Endoscopy named after I. I. Grekov, Head of Endoscopic Department

E. E. Leenman
North-Western State Medical University named after I. I. Mechnikov
Russian Federation

Leenman Elena E., Cand. of Sci. (Med), Pathologist of the Pathoanatomical Department of Clinical Molecular Morphology at the Clinic named after E.E. Eichwald

S. A. Vinnichuk
North-Western State Medical University named after I. I. Mechnikov
Russian Federation

Vinnichuk Sergey A., Cand. of Sci. (Med), Associate Professor of the Department of Pathological Anatomy, Head of Central Pathoanatomical Department

V. P. Zemlyanoy
North-Western State Medical University named after I. I. Mechnikov
Russian Federation

Zemlyanoy Vyasheslav P., Dr. of Sci. (Med), Professor, Head of the Department of Faculty Surgery with the Course of Endoscopy named after I. I. Grekov, Director of the Institute of Surgery