1. Department of Internal Medicine and Intensive Care Unit, Catharina Hospital Eindhoven, Eindhoven, The Netherlands
2. Department of Electrical Engineering, University of Technology, Eindhoven, The Netherlands
3. Department of Acute Medicine, Ysbyty Gwynedd and Bangor University, Penrhosgarnedd, Bangor LL57 2PW, UK
4. Philips Research, Eindhoven, The Netherlands
5. Department of Acute and Internal Medicine, The Christie Hospital, Manchester, UK
6. Department of Emergency Medicine, Hospital of South West Jutland, Esbjerg, Denmark
7. Department Acute Medicine, Salford Royal NHS Foundation Trust, Salford, UK
8. Department of Anesthesiology, Catharina Hospital Eindhoven, Eindhoven, The Netherlands