1. Department of Cardiology/Electrophysiology (N.S., P.B., F.S., A.M., S.O., C.S., M.K., S.K.), University Hospital Basel, Switzerland.
2. Cardiovascular Research Institute Basel (CRIB) (N.S., P.B., F.S., A.M., S.O., C.S., M.K., S.K.), University Hospital Basel, Switzerland.