1. Department of Cardiology, Leiden University Medical Centre, Heart Lung Center, Albinusdreef 2, Leiden, The Netherlands
2. Antwerp Cardiovascular Center, ZNA Middelheim, Lindendreef 1, Antwerp, BelgiumDepartment of Cardiology, Princess Alexandra Hospital, The University of Queensland, 199 Ipswich Rd, Woolloongabba QLD, Australia