1. KHARKIV NATIONAL MEDICAL UNIVERSITY, KHARKIV, UKRAINE; SI “ZAITSEV INSTITUTE OF GENERAL AND EMERGENCY SURGERY OF THE NATIONAL ACADEMY OF MEDICAL SCIENCES OF UKRAINE”, KHARKIV, UKRAINE
2. EDUCATIONAL AND SCIENTIFIC MEDICAL INSTITUTE OF THE NATIONAL TECHNICAL UNIVERSITY ≪KHARKIV POLYTECHNIC INSTITUTE≫, KHARKIV, UKRAINE
3. SI “ZAITSEV INSTITUTE OF GENERAL AND EMERGENCY SURGERY OF THE NATIONAL ACADEMY OF MEDICAL SCIENCES OF UKRAINE”, KHARKIV, UKRAINE; EDUCATIONAL AND SCIENTIFIC MEDICAL INSTITUTE OF THE NATIONAL TECHNICAL UNIVERSITY ≪KHARKIV POLYTECHNIC INSTITUTE≫, KHARKIV, UKRAINE