A. M. Vdovin
City Clinical Hospital No. 67 named after L.A. Vorokhobov, Department of Healthcare of Moscow; Federal State Budgetary Educational Institution of Higher Education Ulyanovsk State University
Russian Federation

Vdovin Alexey Mikhailovich – trauma and orthopedic surgeon of the emergency traumatology department, State Budgetary Healthcare Institution of the City of Moscow; postgraduate student of the department of general and operative surgery with topographic anatomy and a course in stomatology of the medical faculty named after T.Z. Biktimirova, Institute of Medicine, Ecology and Physical Culture 

125368, Moscow, Freedom Street, bld. 34, str. 1;
432071, Ulyanovsk Region, Ulyanovsk, Leo Tolstoy Street, bld. 42

A. V. Smolkina
Federal State Budgetary Educational Institution of Higher Education Ulyanovsk State University
Russian Federation

Smolkinа Antonina Vasilyevna – Doctor of Medical Sciences, Professor, Head of the Department of General and Operative Surgery with Topographic Anatomy and a Course in Stomatology of the Medical Faculty named after T.Z. Biktimirova, Institute of Medicine, Ecology and Physical Culture 

432071, Ulyanovsk Region, Ulyanovsk, Leo Tolstoy Street, bld. 42

E. A. Toneev
Federal State Budgetary Educational Institution of Higher Education Ulyanovsk State University; State Healthcare Institution Regional Oncological Dispensary
Russian Federation

Toneev Evgeny Alexandrovich – Candidate of Medical Sciences, thoracic surgeon of the surgical department of thoracic oncology; Associate Professor of the Department of Hospital Surgery, Anesthesiology, Reanimation, Urology, Traumatology and Orthopedics of the Medical Faculty named after T.Z. Biktimirova, Institute of Medicine, Ecology and Physical Culture 
SCOPUS ID: 1043371 

432078, Ulyanovsk Region, Ulyanovsk, September 12th Street, bld. 90;
432071, Ulyanovsk Region, Ulyanovsk, Leo Tolstoy Street, bld. 42

R. F. Shagdaleev
Federal State Budgetary Educational Institution of Higher Education Ulyanovsk State University
Russian Federation

Shagdaleev Roman Fatykhovich – Assistant, intern of the Department of Hospital Surgery, Anesthesiology, Reanimation, Urology, Traumatology and Orthopedics of the Faculty of Dentistry, Pharmacy and Postgraduate Medical Education, Institute of Medicine, Ecology and Physical Culture 
SCOPUS ID: 1245970 

432071, Ulyanovsk Region, Ulyanovsk, Leo Tolstoy Street, bld. 42

E. A. Keshyan
State Budgetary Healthcare Institution “City Clinical Hospital 15 named after O.M. Filatov Department of Health of Moscow"
Russian Federation

Keshyan Erik Ashatovich – Candidate of Medical Sciences, surgeon of the surgical department; Assistant of the Department of Hospital Surgery 1 

111539, Moscow, Veshnyakovskaya Street, bld. 23;
117997, Moscow, Ostrovityanova Street, bld. 1,

N. I. Belonogov
Federal State Budgetary Educational Institution of Higher Education Ulyanovsk State University
Russian Federation

Belonogov Nikolay Ivanovich – Doctor of Medical Sciences, Professor of the Department of Hospital Surgery 

432071, Ulyanovsk Region, Ulyanovsk, Leo Tolstoy Street, bld. 42

A. B. Guseynov
State Budgetary Healthcare Institution “City Clinical Hospital 15 named after O.M. Filatov Department of Health of Moscow"
Russian Federation

Huseynov Alim Bandar ogly – surgeon of the 1st surgical department 

111539, Moscow, Veshnyakovskaya Street, bld. 23