Heart Failure - NYHA II - IV

• Keck Medicine of USC-Norris Healthcare Center - Transplant Clinic — Los Angeles, California, United States
• University of Minnesota — Minneota, Minnesota, United States
• Medical University of South Carolina — Charleston, South Carolina, United States
• University of Texas Southwestern Medical Center - Clinical Heart and Vascular Center - West Campus Building 3 Location — Dallas, Texas, United States

• Heart Center Research, LLC — Huntsville, Alabama, United States
• Mobile Infirmary Medical Center — Mobile, Alabama, United States
• Arrhythmia Research Group — Jonesboro, Arkansas, United States
• Scripps Memorial Hospital — La Jolla, California, United States

• Second Affiliated Hospital, School of Medicine, Zhejiang University — Hangzhou, Zhejiang, China

• Southlake Health — Newmarket, Ontario, Canada
• 200 Elizabeth Street — Toronto, Ontario, Canada
• Sunnybrook Health Sciences Center — Toronto, Ontario, Canada

• University Hospital Leipzig — Leipzig, Germany

• Lakeland Regional Hospital — Lakeland, Florida, United States

• Aalborg University Hospital — Aalborg, Denmark
• Copenhagen University Hospital Herlev — Herlev, Denmark

• Department of Cardiology, Pneumology and Vascular Medicine University Hospital Düsseldorf — Düsseldorf, Germany
• Department of Internal Medicine I (KIM I) Division of Cardiology, Angiology and Intensive Medical Care Jena University Hospital — Jena, Germany

• Heart Institute , University of Pécs — Pécs, Baranya, Hungary

Not specified