O. B. Dronova
Orenburg State Medical University
Russian Federation

Olga B. Dronova, Doctor of Medical Sciences, Professor, Department of Surgery IVE

460000, Orenburg, Sovetskaya str., 6, Russia

E. V. Kolesnikova
Medical Clinic “Family Doctor” LLC
Russian Federation

Ekaterina V. Kolesnikova, endoscopist, Ph.D.

A. N. Neverov
Orenburg State Medical University
Russian Federation

Alexey N. Neverov, PhD, Associate Professor of the Department of Surgery IVE

460000, Orenburg, Sovetskaya str., 6, Russia

S. V. Petrov
Orenburg State Medical University
Russian Federation

Sergey V. Petrov, PhD, Associate Professor of the Department of Hospital Surgery

460000, Orenburg, Sovetskaya str., 6, Russia

S. V. Miroshnikov
Orenburg State Medical University
Russian Federation

Sergey V. Miroshnikov, Doctor of Medical Sciences, Head. Department of Surgery IVE

460000, Orenburg, Sovetskaya str., 6, Russia