1. Kuban State Medical University, Department of Surgery No.3, Faculty of Advanced Training and Professional Retraining of Specialists, Russia;
Region Clinic Hospital No.2, Ministry of Health of the Krasnodar Region, Russia
2. Region Clinic Hospital No.2, Ministry of Health of the Krasnodar Region, Russia
3. Kuban State Medical University, Department of Surgery No.3, Faculty of Advanced Training and Professional Retraining of Specialists, Russia
4. Rostov State Medical University, Rostov-on-Don Region, Russia