1. Atrial Fibrillation Institute, Mater Private Hospital , 71 Eccles Street, Dublin 7, D07 T92C , Ireland
2. Boston Scientific Inc. , Natick, MA , USA
3. Department of Cardiology, Zala Varmegyei Szent Rafael Hospital , Zalaegerszeg , Hungary
4. Department of Cardiology, Mater Misericordiae University Hospital , Dublin , Ireland
5. Health Sciences Centre, UCD School of Medicine, University College Dublin , Dublin , Ireland
6. Department of Medicine, Royal College of Surgeons in Ireland , 123 Saint Stephen's Green, Dublin 2, D02 YN77 , Ireland