1 Department of Emergency Medicine and Disaster Medicine, Medical University of Lodz, Lodz, Poland.
2 Department of Anaesthesia and Reanimation, Kocaeli University Hospital, Umuttepe, Kocaeli, Turkey.
3 School of Medicine, Campus Bio-Medico University, Rome, Italy.
4 MSc "Cardiopulmonary Resuscitation", Medical School of University of Athens, Athens, Greece ; Hellenic Society of Cardiopulmonary Resuscitation, Athens, Greece.
5 Allegheny Health Network, Department of Emergency Medicine, Saint Vincent Hospital, USA.