Paroxysmal Atrial Fibrillation

• Arrhythmia Institute at Grandview — Birmingham, Alabama, United States
• Mobile Cardiology Associates — Mobile, Alabama, United States
• Community Memorial Health System — Ventura, California, United States
• Medical City - HCA — Aurora, Colorado, United States

• Institute of Heart Diseases, Wroclaw Medical University — Wroclaw, Lower Silesian Voivodeship, Poland

• Hospital Universitari Vall d'Hebron — Barcelona, Catalonia, Spain

• Hospital del Mar — Barcelona, Spain

• Severance Cardiovascular Hospital, Yonsei University Health System — Seoul, South Korea

Not specified

Not specified

Not specified

• The First Affiliated Hospital of Naval Medical University (Shanghai Changhai Hospital). No. 168, Changhai Road, Yangpu District, Shanghai, China. — Shanghai, Shanghai Municipality, China

Not specified