Arrhythmias, Cardiac

• Libin Cardiovascular Institute — Calgary, Alberta, Canada
• Victoria Cardiac Arrhythmia Trials — Victoria, British Columbia, Canada
• Queen Elizabeth II Health Science — Halifax, Nova Scotia, Canada
• Hamilton Health Sciences Centre — Hamilton, Ontario, Canada

• Alabama Cardiovascular Group — Birmingham, Alabama, United States
• Huntsville Hospital - The Heart Center, PC — Huntsville, Alabama, United States
• Mercy Gilbert Medical Center — Gilbert, Arizona, United States
• Mayo Clinic Phoenix — Phoenix, Arizona, United States

Not specified

• Oregon Health and Science University — Portland, Oregon, United States

• Banner - University Medical Center Phoenix — Phoenix, Arizona, United States
• Cardiology Associates Medical Group — Ventura, California, United States
• Washington Hospital Center — Washington D.C., District of Columbia, United States
• Sarasota Memorial Health Care System — Sarasota, Florida, United States

• The Walton Centre NHS Foundation Trust — Liverpool, United Kingdom

• Hospital Trias i Pujol — Badalona, Barcelona, Spain
• H. Josep Trueta — Girona, Barcelona, Spain
• Hospital Puerta de Hierro — Majadahonda, Madrid, Spain
• H. Universitario de Canarias — San Cristóbal de La Laguna, Santa Cruz De Tenerife, Spain

• University of Ottawa Heart Institute — Ottawa, Ontario, Canada

• Fundación Cardioinfantil-Instituto de Cardiología — Bogotá, Bogota D.C., Colombia

• Ain Shams university hospital — Cairo, Abbasya, Egypt