Heart Failure

• Keimyung University Dongsan Hospital — Daegu, Dalseo-gu, South Korea
• Sejong HOSPITAL — Bucheon-si, Gyeonggi-do, South Korea
• Pusan National University Yangsan Hospital — Yangsan, Gyeongsangnam-do, South Korea
• Chungnam National University Hospital (CNU Hospital) — Daejeon, Jung-gu, South Korea

• University Hospital — Düsseldorf, Germany

• University of California at San Francisco — San Francisco, California, United States
• Medstar Washington Hospital Center — Washington D.C., District of Columbia, United States
• Emory University School of Medicine — Atlanta, Georgia, United States
• Georgia Arrhythmia Consultants and Research Institute — Macon, Georgia, United States

• Research Site — Harrow, United Kingdom

• Region Skåne — Lund, Skåne County, Sweden

• University of Illinois Hospital & Health Sciences System — Chicago, Illinois, United States

Not specified

• Instytut Kardiologii im. Prymasa Tysiąclecia Stefana Kardynała Wyszyńskiego — Katowice, Poland
• Leszek Giec Upper-Silesian Medical Centre of the Silesian Medical University in Katowice — Katowice, Poland
• The John Paul II Hospital — Krakow, Poland
• The University Hospital in Cracow — Krakow, Poland

Not specified

• Cardiology Associates of Mobile, Inc. — Mobile, Alabama, United States
• Apex Cardiology Consultants — Inglewood, California, United States
• University of Southern California — Los Angeles, California, United States
• St. Francis Hospital and Medical Center — Hartford, Connecticut, United States