1 OLVG, Department of Cardiology, Amsterdam, The Netherlands; Amsterdam University Medical Centers/University of Amsterdam, Department of Cardiology and Cardiac Surgery, Amsterdam, The Netherlands. Electronic address: d.mol@olvg.nl.
2 Netherlands Heart Registration, Utrecht, The Netherlands.
3 St Antonius, Department of Cardiology, Nieuwegein, The Netherlands.
4 Erasmus Medical Center, Department of Cardiology, Rotterdam, The Netherlands.
5 University Medical Center Groningen, Department of Cardiology, Groningen, The Netherlands.
6 Medisch Spectrum Twente, Department of Cardiology, Enschede, The Netherlands.
7 Haga Hospital, Department of Cardiology, Den Haag, The Netherlands.
8 Amsterdam University Medical Centers/University of Amsterdam, Department of Cardiology and Cardiac Surgery, Amsterdam, The Netherlands.
9 Isala, Department of Cardiology, Zwolle, The Netherlands.
10 University Medical Center Utrecht, Department of Cardiology, Utrecht, The Netherlands.
11 Medical Center Leeuwarden, Department of Cardiology, Leeuwarden, The Netherlands.
12 Amphia, Department of Cardiology, Breda, The Netherlands.
13 Maastricht University Medical Center, Department of Cardiology, Maastricht, The Netherlands.
14 Catharina Hospital, Department of Cardiology and Cardiac Surgery, Eindhoven, The Netherlands.
15 Radboud University Medical Center, Department of Cardiology, Nijmegen, The Netherlands.
16 OLVG, Department of Cardiology, Amsterdam, The Netherlands.