Out-of-Hospital Cardiac Arrest

• Germany ans 26 other european registries — Kiel, Germany

• University of Washington — Seattle, Washington, United States

• Department of Emergency Medicine, Konkuk University Medical center — Seoul, South Korea

• Guardian Medical Transport — Flagstaff, Arizona, United States
• Mesa Fire Department — Mesa, Arizona, United States

• SA Ambulance Service — Adelaide, South Australia, Australia
• Ambulance Victoria — Melbourne, Victoria, Australia

• Avicenne Hospital - Aphp — Bobigny, Île-de-France Region, France

Not specified

• Emergency medical service system of Suwon city — Suwon, Gyeonggi-do, South Korea

• Department of Intensive Care, Erasme Hospital — Brussels, Belgium
• Department of Anesthesiology and Intensive Care Medicine, Aarhus University Hospital, Aalborg — Aalborg, Denmark
• Department og Anesthesiologi and Intensive Care Medicine, — Aarhus, Denmark
• Department of Cardiology, Copenhagen University Hospital, Rigshospitalet — Copenhagen, Denmark

• Alabama Resuscitation Center — Birmingham, Alabama, United States
• The Pittsburgh Resuscitation Network, University of Pittsburgh — Pittsburgh, Pennsylvania, United States
• Dallas Center for Resuscitation Research, University of Texas Southwestern Medical Center — Dallas, Texas, United States
• Seattle-King County Center for Resuscitation Research — Seattle, Washington, United States