Ventricular Dysfunction, Left

• University of Colorado Hospital — Aurora, Colorado, United States

• University of Rochester Medical Center — Rochester, New York, United States

• Chang Gung memorial hospital — Taoyuan City, Taiwan

• IRCCS AOU San Martino — Genova, Italy
• IRCCS Centro Cardiologico Monzino — Milan, Italy
• IRCCS Fondazione Ca' Granda — Milan, Italy
• IRCCS Istituto Auxologico Italiano — Milan, Italy

• Herzzentrum Leipzig — Leipzig, Saxony, Germany
• Zentralklinik Bad Berka — Bad Berka, Germany
• Charité - Klinik für kardiovaskuläre Chirurgie — Berlin, Germany
• Universitätsklinikum Frankfurt — Frankfurt, Germany

• Casa di Cura Pineta del Carso — Duino-Aurisina, Friuli Venezia Giulia, Italy
• A.O.- Univ. Ospedali Riuniti — Trieste, Friuli Venezia Giulia, Italy
• Azienda Servizi Sanitari N°1 Triestina — Trieste, Friuli Venezia Giulia, Italy
• Presidio Ospedaliero — Sanremo, Liguria, Italy

Not specified

• University of Nebraska Medical Center — Omaha, Nebraska, United States

Not specified

• Istanbul Faculty of Medicine — Fatih, Istanbul, Turkey (Türkiye)