1 Centre for Heart Rhythm Disorders, University of Adelaide and Royal Adelaide Hospital, Adelaide, Australia; Department of Cardiology, University Medical Centre Groningen, The Netherlands.
2 Centre for Heart Rhythm Disorders, University of Adelaide and Royal Adelaide Hospital, Adelaide, Australia.
3 PaceMate, Bradenton, Florida.
4 Department of Medicine, Stanford University, Stanford, California.
5 Kansas City Heart Rhythm Institute, Kansas City, Missouri.
6 Department of Medicine, Yale University School of Medicine, New Haven, Connecticut.
7 Cooper Medical School of Rowan University, Camden, New Jersey.
8 Piedmont Heart Institute, Atlanta, Georgia.
9 Centre for Heart Rhythm Disorders, University of Adelaide and Royal Adelaide Hospital, Adelaide, Australia; Department of Cardiology, University Medical Centre Groningen, The Netherlands. Electronic address: prash.sanders@adelaide.edu.au.