1. Department of Cardiology, Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
2. Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
3. Department of Cardiology, Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark3Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark4National Institute of Public Health, University of Southern Denmark, Copenhage
4. Department of Cardio-thoracic Anesthesia, Rigshospitalet, Copenhagen University, Copenhagen, Denmark