Arrhythmias, Cardiac

• Macon Medical Center — Macon, Georgia, United States
• St. Francis Heart Hospital — Indianapolis, Indiana, United States
• Spectrum Health — Grand Rapids, Michigan, United States
• Washington University School of Medicine — St Louis, Missouri, United States

• Royal Melbourne hospital — Melbourne, Victoria, Australia

Not specified

• Dep. of Cardiology, Bern University Hospital — Bern, Canton of Bern, Switzerland

• Asan Medical Center — Seoul, Songpa-gu, South Korea

• Royal Perth Hospital — Perth, Western Australia, Australia

• Charité — Berlin, State of Berlin, Germany

• Pfizer Investigational Site — Nagoya, Aichi-ken, Japan
• Pfizer Investigational Site — Seto, Aichi-ken, Japan
• Pfizer Investigational Site — Touon, Ehime, Japan
• Pfizer Investigational Site — Fukuoka, Japan

• Hospital Clinic Universitari — Barcelona, Spain
• Hospital de Sant Pau — Barcelona, Spain
• Hospital de Cruces — Bilbao, Bizkaia, Spain
• Clínica Puerta de Hierro — Madrid, Spain

• Santa Maria della Misericordia - A.O. di Perugia — Perugia, PG, Italy
• Arrhythmia Department, Azienda Ospedaliero-Universitaria Pisana — Pisa, PI, Italy
• CNR, Institute of Clinical Physiology, Fondazione G. Monasterio — Pisa, PI, Italy
• Institute of Cardiology; Presidio Ospedaliero Santa Chiara — Trento, TN, Italy