1. Department of Cardiology, Amphia Hospital Breda, Molengracht 21, 4818 CK Breda, The Netherlands
2. Department of Cardiology, Radboud University Medical Center, Geert Grooteplein Zuid 10, 6525 GA Nijmegen, The Netherlands
3. Department of Cardiology, AZ Sint-Jan Brugge, Ruddershove 10, 8000 Bruges, Belgium