Mitral Valve Insufficiency

• Bordeaux Heart University Hospital (CHU) — Bordeaux, France
• Herzzentrum Dresden — Dresden, Germany
• Asklepios Hospital St. Georg — Hamburg, Germany
• University Medical Center Hamburg — Hamburg, Germany

• St Peter's Hospital, Guildford Road — Chertsey, Surrey, United Kingdom

• Inha University Hospital — Incheon, South Korea
• Asan Medical Center — Seoul, South Korea
• Samsung Medical Center — Seoul, South Korea
• Yonsei University Medical Center — Seoul, South Korea

• Baystate Medical Center — Springfield, Massachusetts, United States

Not specified

• University of Southern California — Los Angeles, California, United States
• Emory University — Atlanta, Georgia, United States
• Wellstar Kennestone Hospital — Marietta, Georgia, United States
• University of Maryland — Baltimore, Maryland, United States

• Clinica CardioVID — Medellín, Colombia

• Yale New Haven Hospital — New Haven, Connecticut, United States
• Christiana Care Health Services — Newark, Delaware, United States
• Emory University — Atlanta, Georgia, United States
• University of Maryland — Baltimore, Maryland, United States

• Konkuk University Medical Center — Seoul, South Korea

• Instituto de Cardiología Paredes-Horna — Arequipa, Peru
• Department of Cardiology — Bern, Canton of Bern, Switzerland