1 Department of Cardiology, Swiss Cardiovascular Center Bern, Bern University Hospital, Bern, Switzerland. Electronic address: stephan.windecker@insel.ch.
2 Department of Cardiology, Swiss Cardiovascular Center Bern, Bern University Hospital, Bern, Switzerland; Division of Cardiology, Department of Advanced Biomedical Sciences, Federico II University, Naples, Italy.
3 Department of Cardiology, Swiss Cardiovascular Center Bern, Bern University Hospital, Bern, Switzerland.