1. Klodzko City Hospital, Ul. Szpitalna 1a, 57-300 Klodzko, Poland
2. Centre for Preclinical Studies, Wrocław Medical University, Ul. Marcinkowskiego 1, 53-220 Wroclaw, Poland
3. Epidemiology and Health Education Unit, Population Health Department, Wroclaw Medical University, Ul. Bujwida 44, 50-345 Wroclaw, Poland
4. Department of Medical Emergencies, Wroclaw Medical University, Ul. Parkowa 34, 51-616 Wroclaw, Poland