1. Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano, S. Luca Hospital, Piazzale Brescia, 20, 20149 Milan, Italy
2. Department of Medicine and Surgery, University of Milano-Bicocca, Piazza dell'Ateneo Nuovo, 1, 20126 Milan, Italy
3. Department of Cardiology, Heart Failure Unit, Centro Cardiologico Monzino, via Parea 4, 20138 Milan, Italy
4. Department of Clinical Sciences and Community Health, Cardiovascular Section, University of Milano, via Festa del Perdono 7, 20122 Milan, Italy
5. Nuffield Department of Clinical Medicine, Oxford University Clinical Research Unit-Nepal and Centre for Tropical Medicine and Global Health, University of Oxford, Old Road campus, Roosevelt Drive, Headington, Oxford OX3 7FZ, UK
6. Institute of Mountain Emergency Medicine at the EURAC Research, viale Druso 1, 39100 Bolzano, Italy
7. Medical University, Christoph-Probst-Platz 1, Innrain 52 A - 6020 Innsbruck, Austria
8. Hypertension and Vascular Risk Unit, Department of Internal Medicine, Hospital Clínic (IDIBAPS), University of Barcelona, Villarroel 170, 08036 Barcelona, Spain
9. Surgery Department, Ospedale di Circolo Fondazione Macchi, viale Luigi Borri, 57, 21100 Varese, Italy
10. University of Insubria, via Ravasi 2, 21100 Varese, Italy
11. Department of Neurology, Neurophysiopathology Unit, Valle d’Aosta Regional Hospital, via Ginevra, 3, 11100 Aosta, Italy
12. Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Washington, Seattle, 98195 WA, USA
13. Medical Intensive Care Unit, University Hospital, Rämistrasse 100, 8091 Zürich, Switzerland
14. Department of Experimental and Clinical Medicine, University of Florence, Largo Brambilla, 3, 50134 Florence, Florence, Italy
15. Pulmonary, Critical Care and Sleep Medicine, VA Puget Sound Health Care System, 1660 S Columbian Way, Seattle, 98108 WA, USA
16. University College London (UCL) and NIHR UCL Hospitals Biomedical Research Centre, NHS Foundation Trust, University College, Gower St, Bloomsbury, London WC1E 6BT, UK
17. Department of Internal Medicine, University Hospital, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany