A. I. Ivanov
Republican Clinical Oncology Dispensary named after Prof. M. Z. Sigal; Kazan (Volga Region) Federal University; Kazan State Medical Academy – Branch Campus of Russian Medical Academy of Continuous Professional Education
Russian Federation

Ivanov Aleksej I., Cand. of Sci. (Med.), Associate Professor of the Department of Endoscopy, General and Endoscopic Surgery, Kazan State Medical Academy – Branch Campus of Russian Medical Academy of Continuous Professional Education, Head of the Department of Endoscopy, Republican Clinical Oncology Dispensary named after Prof. M. Z. Sigal, Associate Professor of the Department of Fundamentals of Clinical Medicine, Kazan State Medical Academy – Branch Campus of Russian Medical Academy of Continuous Professional Education (Kazan, Russia), Chief Endoscopist of the Republic of Tatarstan

29, Sibirskii trakt, Kazan, 420029, 

18, Kremlevskaia str., Kazan, 420008, 

36, Butlerova str., Kazan, 420012

V. A. Popov
Republican Clinical Hospital
Russian Federation

Popov Vladimir A., Endoscopist of the Department of Endoscopy, Research Fellow of the Research Department

138, Orenburg tract, Kazan, 420064

M. V. Burmistrov
Republican Clinical Hospital; Kazan (Volga Region) Federal University
Russian Federation

Burmistrov Mihail V., Dr. of Sci. (Med.), Professor of the Department of Oncology, Radiology and Palliative Medicine, Kazan State Medical Academy – Branch Campus of Russian Medical Academy of Continuous Professional Education, Head of the Department of Surgical Diseases of Postgraduate Education of the Institute of Fundamental Medicine and Biology

138, Orenburg tract, Kazan, 420064,

18, Kremlevskaia str., Kazan, 420008

M. A. Nazmeev
Republican Clinical Hospital
Russian Federation

Nazmeev Marat A., Head of the Department of Endoscopy, Research Fellow of the Research Department

138, Orenburg tract, Kazan, 420064