- Correspondence to Mr Balint Banfai, University of Pécs Faculty of Health Sciences Institute of Emergency Care and Health Pedagogy, 7621 Pécs, Vörösmarty street 4, Hungary;
- Received 15 August 2016
- Revised 7 March 2017
- Accepted 21 March 2017
- Published online 18 April 2017.
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