1. From the Department of Cardiology University Hospital Basel BaselSwitzerland
2. Cardiovascular Research Institute Basel University Hospital Basel BaselSwitzerland
3. Department of Cardiology Cardiocentro Ticino Lugano LuganoSwitzerland
4. Institute of Primary Health Care (BIHAM) University of Bern BernSwitzerland
5. Department of General Internal Medicine InselspitalBern University HospitalUniversity of Bern Bern Switzerland
6. Population Health Research Institute McMaster University and Hamilton Health Sciences Hamilton Canada