Aortic Valve Insufficiency

• Beijing Anzhen Hospital — Beijing, Beijing Municipality, China
• Fu Wai Hospital, Beijing, China — Beijing, Beijing Municipality, China
• Fujian Medical University Union Hospital — Fuzhou, Fujian, China
• XiaMen Cardiovascular Hospital XiaMen University — Xiamen, Fujian, China

• First Affiliated Hospital, Sun Yat-Sen University — Guangzhou, Guangdong, China
• Third Affiliated Hospital, Sun Yat-Sun University — Guangzhou, Guangdong, China
• Jieyang People's Hospital — Jieyang, Guangdong, China
• Second Affiliated Hospital of Shantou University Medical College — Shantou, Guangdong, China

• National Medical Research Center of Children's Health — Moscow, Russia

• Department of Cardiovascular Surgery, German Heart Center Munich — Munich, Bavaria, Germany

• Francesco Nappi — Saint-Denis, France

• Xijing Hospital — Xi’an, Shanxi, China

• Policlinico Agostino Gemelli — Roma, Italy

• Shanghai General Hospital — Shanghai, Shanghai Municipality, China

• Beijing Anzhen Hospital — Beijing, Beijing Municipality, China

Not specified