Arrhythmias, Cardiac

• Centro Medico Teknon — Barcelona, Spain
• Puerta del Mar University Hospital — Cadiz, Spain
• Virgen del Rocio University Hospital — Seville, Spain

• Sanatorio Italiano — Asunción, Paraguay

• CRS-Kiel — Kiel, Schleswig-Holstein, Germany

• National Academy of Medical Sciences — Kathmandu, Nepal

• CHU de Bordeaux — Bordeaux, France
• CH de Pau — Pau, France

• University of California, San Francisco — San Francisco, California, United States

• The Second Affiliated Hospital of Kunming Medical University — Kunming, Yunnan, China

• Felix Platter Spital — Basel, Switzerland
• Dep. of Neurology, Hospital of the University of Basel — Basel, Switzerland

• Oxford Univeristy Hospitals NHS Foundation Trust — Oxford, Oxfordshire, United Kingdom

Not specified