1. Department of Anesthesia, Critical Care and Pain Unit, University General Hospital, Valencia, Spain
2. Division of Research Methodology, European University, Valencia, Spain
3. Department of Statistics and Operations Research, University of Valencia, Valencia, Spain
4. Department of Preventive Medicine and Public Health, Food Sciences, Toxicology and Forensic Medicine, Faculty of Pharmacy, University of Valencia, Valencia, Spain
5. Head of Department of Anesthesia, Critical Care and Pain Unit, Valencia University General Hospital, Valencia, Spain
6. Faculty of Medicine, University of Valencia, Valencia, Spain
7. Center for Intensive Care and Anesthesiology (CARE), San Raffaele Hospital Head of SIAARTI Clinical Research Committee, Vita-Salute San Raffaele University, Milan, Italy
8. Instituto de Física Interdisciplinar y Sistemas Complejos IFISC (CSIC-UIB), Palma de Mallorca, Spain