Chronic Heart Failure

• The University of Alabama at Birmingham — Birmingham, Alabama, United States
• Mayo Clinic Hospital - Phoenix — Phoenix, Arizona, United States
• The University of Southern California — Los Angeles, California, United States
• Sharp Memorial — San Diego, California, United States

• MUMC — Maastricht, Netherlands

• Istanbul University Institution of Cardiology — Istanbul, Turkey (Türkiye)

• Klinikum St. Marien Amberg - Medizinische Klinik I — Amberg, Germany
• GLG Fachklinik Wolletzsee GmbH — Angermünde, Germany
• Klinik Ernst von Bergmann Bad Belzig gGmbH - Zentrum für Innere Medizin/Kardiologie — Bad Belzig, Germany
• Oder-Spree-Krankenhaus Beeskow GmbH — Beeskow, Germany

Not specified

• Mayo Clinic (Arizona) — Phoenix, Arizona, United States
• Sharp Memorial Hospital — San Diego, California, United States
• Stanford University School of Medicine — Stanford, California, United States
• Washington Hospital Center — Washington D.C., District of Columbia, United States

• Umea University — Skellefteå, Västerbotten County, Sweden

• Diabetes Center, Institute of Clinical and Experimental Medicine — Prague, Czechia

• Gdański Uniwersytet Medyczny — Gdansk, Poland
• Klinika Chorób Wewnętrznych i Rehabilitacji Kardiologicznej — Lodz, Poland
• Warsaw Medical University; Department of Cardiology — Warsaw, Poland
• Institute of Cardiology — Warsaw, Poland

• Primary health care center. — Olofström, Blekinge County, Sweden