Death, Sudden, Cardiac

• Alaska Cardiovascular Research Foundation, Inc. — Anchorage, Alaska, United States
• University of Michigan — Ann Arbor, Michigan, United States
• Washington University St Louis — St Louis, Missouri, United States
• Institute for Research and Innovation MultiCare Health System — Tacoma, Washington, United States

• St Vincent's Hospital — Sydney, New South Wales, Australia

• University of Michigan Hospital — Ann Arbor, Michigan, United States

Not specified

Not specified

Not specified

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

• St.Olavs Hospital, Department of Anesthesia — Trondheim, Norway

Not specified

• Brigham and Women's Hospital, Shapiro Cardiovascular Center — Boston, Massachusetts, United States