1. Department of Intensive Care and Anaesthesiology Holbæk Hospital Holbæk Denmark
2. Department of Regional Health Research University of Southern Denmark Odense Denmark
3. Department of Gastroenterology Copenhagen University Hospital Hvidovre Denmark
4. Department of Intensive Care and Anaesthesiology Lillebaelt Hospital University Hospital of Southern Denmark Kolding Denmark
5. Alfred Health Centre for Quality and Patient Safety Research Institute of Health Transformation Deakin University Burwood Victoria Australia