Arrhythmia

• Johns Hopkins University School of Medicine — Baltimore, Maryland, United States
• Washington University School of Medicine — St Louis, Missouri, United States

• University of Michigan Dialysis Center — Ann Arbor, Michigan, United States
• University of Michigan Dialysis Center — Livonia, Michigan, United States

• Holy Cross Hospital — Fort Lauderdale, Florida, United States
• St. Elizabeth's Medical Center — Brighton, Massachusetts, United States

• Samsung Medical Center — Seoul, South Korea

• Alaska Heart Institute — Anchorage, Alaska, United States
• Gilbert, Arizona, United States
• Scottsdale, Arizona, United States
• Little Rock, Arkansas, United States

• Hamilton General Hospital, McMaster University — Hamilton, Ontario, Canada
• University of Ottawa Heart Institute — Ottawa, Ontario, Canada

• Mayo Clinic — Rochester, Minnesota, United States

Not specified

• CTU — Bern, Canton of Bern, Switzerland

Not specified