Aortic Regurgitation

• Fuwai Hospital, CAMS&PUMC — Beijing, China
• WestChina Hospital, Sichuan University — Chengdu, China
• The Second Affiliated Hospital of Zhejiang University School of Medicine — Hangzhou, China
• Zhongshan Hospital Fudan University — Shanghai, China

• Fuwai Hospital — Beijing, Beijing Municipality, China

• WestChina Hospital, Sichuan University — Sichuan, Chengdu, China
• Fuwai Hospital, CAMS&PUMC — Beijing, China
• The Second Affiliated Hospital of Zhejiang University School of — Hangzhou, China

• Nantes University Hospital — Nantes, France

• IRCCS Ospedale San Raffaele — Milan, Italy

• IRCCS Ospedale San Raffaele — Milan, Italy

• 10 Institutions Including Asan Medical Center — Seoul, South Korea

Not specified

• Herz- und Diabeteszentrum NRW — Bad Oeynhausen, Germany
• Herzzentrum der Universität — Cologne, Germany
• Herzzentrum Dresden, Universitätsklinik an der Technischen Universität Dresden — Dresden, Germany
• University Hospital — Erlangen, Germany

• Casa Di Cura Villa Sant'Anna — Catanzaro, CZ, Italy
• Aou Careggi — Florence, FI, Italy
• Ospedale San Raffaele — Milan, MI, Italy
• Centro Cardiologico Monzino — Milan, MI, Italy