1. Department of Cardiology, Lausanne University Hospital, Lausanne, Switzerland
2. Division of Cardiology, University Hospital, Geneva, Switzerland
3. Interventional Cardiology, SS Antonio e Biagio e Cesare Arrigo Hospital, Alessandria, Italy
4. Department of Cardiology, Charleroi University Hospital, Charleroi, Belgium
5. Department of Cardiology, Bern University Hospital, Bern, Switzerland