P. V. Kolyadko
Nizhnevartovsk District Clinical Hospital
Russian Federation

Pavel V. Kolyadko – General Surgeon, Bariatric Surgeon at the Surgical Department No. 3,

Lenina str. 18, Nizhnevartovsk 628614

E. N. Degovtsov
Omsk State Medical University
Russian Federation

Evgeny N. Degovtsov – Dr. Sc. (Med.), Docent, Head of the Department of Advanced Level Surgery named after N.S. Makokha, 

Lenina str. 12, Omsk 644099

V. P. Kolyadko
Nizhnevartovsk District Clinical Hospital
Russian Federation

Vasilii P. Kolyadko – General Surgeon, Oncologist, Head of the Surgical Department No. 3,

Lenina str. 18, Nizhnevartovsk 628614

Yu. P. Nikitina
Nizhnevartovsk District Clinical Hospital
Russian Federation

Yulia P. Nikitina – Endocrinologist,

Lenina str. 18, Nizhnevartovsk 628614

A. V. Satinov
Nizhnevartovsk District Clinical Hospital
Russian Federation

Aleksei V. Satinov – General Surgeon, Coloproctologist, Head Physician,

Lenina str. 18, Nizhnevartovsk 628614