Aortic Insufficiency

• Beijing Anzhen Hospital Affiliated to Capital Medical University — Beijing, Beijing Municipality, China
• Fuwai Hospital, Chinese Academy of Medical Sciences — Beijing, Beijing Municipality, China
• Guangdong Provincial People's Hospital — Guangzhou, Guangdong, China
• Prince of Wales Hospital — Hong Kong, China

• Heart and Diabetes Center North Rhine-Westphalia — Bad Oeynhausen, North Rhine-Westphalia, Germany

• CPMC Sutter Health — Burlingame, California, United States
• Scripps Health — La Jolla, California, United States
• Cedars-Sinai Medical Center — Los Angeles, California, United States
• Los Robles Medical Center — Thousand Oaks, California, United States

• Centre Hospitalier Universitaire de Liège — Liège, Belgium

• Saint Petersburg State University Clinic — Saint Petersburg, Sankt-Peterburg, Russia

Not specified

• Cedars-Sinai Medical Center — Los Angeles, California, United States
• Sutter Health — San Francisco, California, United States
• Medstar Washington Hospital Center — Washington D.C., District of Columbia, United States
• Piedmont — Atlanta, Georgia, United States

Not specified

• TMC HealthCare & PIMA Heart — Tucson, Arizona, United States
• Cedars Sinai Medical Center — Los Angeles, California, United States
• Scripps Hospital — San Diego, California, United States
• California Pacific Medical Center Research Institute — San Francisco, California, United States

• Apollo Hospital — Chennai, India
• Medanta-The Medicity — Gurgaon, India
• Rajasthan Hospital — Jaipur, India
• Seth GS Medical College & KEM Hospital — Mumbai, India