1. DEPARTMENT OF EMERGENCY MEDICINE, WROCLAW MEDICAL UNIVERSITY, WROCLAW, POLAND
2. DEPARTMENT OF EMERGENCY MEDICAL SERVICE, STRATEGIC PLANNING UNIVERSITY OF DABROWA GoRNICZA, DaBROWA GoRNICZA, POLAND; FACULTY OF MEDICINE, KATOWICE SCHOOL OF TECHNOLOGY, KATOWICE, POLAND
3. DEPARTMENT OF PAEDIATRIC TRAUMATOLOGY AND EMERGENCY MEDICINE, WROCLAW MEDICAL UNIVERSITY, WROCLAW, POLAND