1. Department of Cardiology Dijklander Ziekenhuis Hoorn The Netherlands
2. Department of Cardiology Amsterdam University Medical Center, location VU University Medical Center Amsterdam The Netherlands
3. Department of Cardiology Dijklander Ziekenhuis Purmerend The Netherlands
4. Department of Cardiology Amsterdam University Medical Center, location Academic Medical Center Amsterdam The Netherlands
5. Department of Medical Library Dijklander Ziekenhuis Hoorn The Netherlands
6. Department of Cardiothoracic Surgery Academic Medical Center Amsterdam The Netherlands
7. Department of Cardiology Onze Lieve Vrouwe Gasthuis Amsterdam The Netherlands