1. Health Sciences Department University of Florence Florence Italy
2. Emergency Department S. Maria della Misericordia Hospital Perugia Italy
3. Department of Experimental Medicine Section of Public Health University of Perugia Perugia Italy
4. Emergency Medical Service Azienda USL Toscana Centro Pistoia Italy
5. Research and Development Unit Azienda Ospedaliero Universitaria Careggi Florence Italy