1. Department of Medicine, University of Verona and Azienda Ospedaliera Universitaria Integrata Verona, Verona, Italy;
2. Department of Surgical Science, Anesthesiology, Intensive Care and Pain Therapy Center, University of Verona and Azienda Ospedaliera Universitaria Integrata Verona, Verona, Italy;
3. Advanced Consulting Engineering AC&E, Verona, Italy; and
4. Department of Public Health and Community Medicine, University of Verona, Verona, Italy