1. Institute of Cardiovascular Diseases & Department of Cardiovascular Surgery, TEDA International Cardiovascular Hospital Tianjin University & Chinese Academy of Medical Sciences Tianjin China
2. Department of Surgery Oregon Health and Science University Portland Oregon USA
3. Knight Cardiovascular Institute Oregon Health & Science University Portland Oregon USA
4. Guangzhou Women and Children's Medical Center Guangzhou Medical University Guangzhou China
5. Qingdao Women and Children's Hospital Qingdao University Qingdao China