1. Electrophysiology Laboratory; The Valley Hospital, Valley Health System; Ridgewood New Jersey
2. Centre for Heart Rhythm Disorders; South Australian Health and Medical Research Institute, University of Adelaide and Royal Adelaide Hospital; Adelaide Australia
3. Arrhythmia Department; State Research Institute of Circulation Pathology; Novosibirsk Russia
4. Department of Cardiology; Catharina Hospital; Eindhoven the Netherlands
5. The Carl and Edyth Lindner Center for Research and Education; The Christ Hospital; Cincinnati Ohio
6. Departments of Statistics and Clinical Research; Medtronic, Inc; Mounds View Minnesota
7. Department of Clinical Research; Medtronic Bakken Research Center BV; Maastricht the Netherlands
8. Department of Cardiology; Elisabethinen University Teaching Hospital; Linz Austria