1. Faculty of Medicine, Medical University of Silesia, Katowice, Poland
2. Medical Center in Łańcut, Medical Center in Łańcut, Poland
3. E.Szczeklik Specialist Hospital, Tarnów, Poland
4. Provincial Specialist Hospital in Wrocław, Poland
5. Polish Red Cross Maritime Hospital, Gdynia, Poland
6. Lower Silesian Specialist Hospital Emergency Medicine Center, Wrocław, Poland
7. Medical Center in Łańcut, Poland
8. University Teaching Hospital them F. Chopin in Rzeszów, Poland