Atrial Functional Mitral Regurgitation

• The First Affiliated Hospital of Anhui Medical University — Hefei, Anhui, China
• Beijing Anzhen Hospital, Capital Medical University — Beijing, Beijing Municipality, China
• Peking University Third Hospital — Beijing, Beijing Municipality, China
• Xiamen University Affiliated Cardiovascular Hospital — Xiamen, Fujian, China

• Montefiore Medical Center — The Bronx, New York, United States
• St. Michael's Hospital — Toronto, Canada
• Bordeaux University Hospital — Bordeaux, France
• University Hospital Center of Nantes — Nantes, France

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

Not specified

• Interventional Center of Valvular Heart Disease, Beijing Anzhen Hospital — Beijing, Beijing Municipality, China

• 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