Tachycardia, Supraventricular

• University of Southern California - Children's Hospital of Los Angeles — Los Angeles, California, United States
• Children's Hospital of Orange County — Orange, California, United States
• The Children's Mercy Hospital — Kansas City, Missouri, United States
• Schneider Children's Hospital — New Hyde Park, New York, United States

• Childrens Hospital of Pittsburgh of UPMC — Pittsburgh, Pennsylvania, United States

• EvergreenHealth Heart and Vascular Care — Kirkland, Washington, United States

• Singapore General Hospital — Singapore

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

Not specified

• Mayo Clinic — Jacksonville, Florida, United States
• Mayo Clinic — Rochester, Minnesota, United States
• Carmel Medical Center — Haifa, Israel
• Sheba Medical Center — Ramat Gan, Israel

• 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

• Little Rock, Arkansas, United States
• Rancho Mirage, California, United States
• San Diego, California, United States
• Yuba City, California, United States

• University of Chicago — Chicago, Illinois, United States
• Gene Trobaugh Cardiology — Enumclaw, Washington, United States
• Auckland City Hospital — Auckland, New Zealand
• Christchurch Hospital — Christchurch, New Zealand