B. V. Sigua
Surgical Department No. 2; I. I. Mechnikov North-Western State Medical University
Russian Federation

Doctor of Medical Sciences, Professor of the Department of Faculty Surgery

41 Kirochnaya St., St. Petersburg, 191015, Russian Federation

V. P. Zemlyanoy
Surgical Department No. 2; I. I. Mechnikov North-Western State Medical University
Russian Federation

Doctor of Medical Sciences, Professor, Head of the I.I. Grekov Department of Faculty Surgery

41 Kirochnaya St., St. Petersburg, 191015, Russian Federation

S. V. Petrov
Surgical Department No. 2; I. I. Mechnikov North-Western State Medical University; SPb Saint Martyr Elizabeth City Hospital
Russian Federation

Doctor of Medical Sciences, Professor, S.A. Simbirtsev Department of Operational and Clinical Surgery with Topographic Anatomy, Chief Physician

41 Kirochnaya St., St. Petersburg, 191015, Russian Federation

14A Vavilovykh St., St. Petersburg, 195257, Russian Federation

V. A. Ignatenko
Surgical Department No. 2; I. I. Mechnikov North-Western State Medical University; SPb Saint Martyr Elizabeth City Hospital
Russian Federation

Applicant for the I.I. Grekov Department of the Faculty Surgery, Head of
the Surgical Department No. 2

41 Kirochnaya St., St. Petersburg, 191015, Russian Federation

14A Vavilovykh St., St. Petersburg, 195257, Russian Federation

P. A. Kotkov
Surgical Department No. 2; I. I. Mechnikov North-Western State Medical University; SPb Saint Martyr Elizabeth City Hospital
Russian Federation

Candidate of Medical Sciences, Assistant of I.I. Grekov Department of the Faculty Surgery, Surgeon of the Surgical Department No. 2

41 Kirochnaya St., St. Petersburg, 191015, Russian Federation

14A Vavilovykh St., St. Petersburg, 195257, Russian Federation