1 Cardiovascular Center Aalst, OLV-Clinic, Aalst, Belgium; Department of Cardiology, Toulouse University Hospital, Toulouse, France.
2 Department of Cardiology, Toulouse University Hospital, Toulouse, France.
3 Department of Cardiology, Liverpool Centre for Cardiovascular Science, Liverpool Heart and Chest Hospital, Liverpool, United Kingdom. Electronic address: timothy.fairbairn@lhch.nhs.uk.