1. Department of Global Public Health, Health Systems and Policy Karolinska Institute Stockholm Sweden
2. Key Unit of Methodology in Clinical Research Guangdong Provincial Hospital of Chinese Medicine Guangzhou China
3. The Second Affiliated Hospital of Guangzhou University of Chinese Medicine Guangzhou China
4. Division of Cardiovascular Diseases, Department of Internal Medicine Mayo Clinic and Foundation Rochester MN USA
5. Department of Cardiology Guangdong Provincial Hospital of Chinese Medicine Guangzhou China
6. National Centre for Design Measurement and Evaluation in Clinical Research Guangzhou University of Chinese Medicine Guangzhou China
7. Heart Failure Center/Department of Cardiology Guangdong Provincial Hospital of Chinese Medicine Guangzhou China