1. Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education Life of Sciences Northwest University Xi'an China
2. Department of Cardiovascular Surgery, Xijing Hospital The Fourth Military Medical University Xi'an China
3. Department of Cardiovascular Surgery The First Affiliated Hospital of Xi'an Jiaotong University Xi'an Shaanxi China
4. Department of Cardiology The First Hospital of Shanxi Medical University Taiyuan China
5. Department of Cardiology, Affiliated Hospital Yan'an University China
6. Hainan Hospital of PLA General Hospital, The Second School of Clinical Medicine Southern Medical University Sanya Hainan China
7. Hainan Branch of National Clinical Reasearch Center of Geriatrics Disease Sanya Hainan China