1. Department of Cardiology, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou 510120, China
2. The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405, China
3. Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
4. Health Systems and Policy, Department of Global Public Health, Karolinska Institutet, Stockholm 17177, Sweden
5. Key Unit of Methodology in Clinical Research, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou 510120, China
6. National Centre for Design Measurement and Evaluation in Clinical Research, Guangzhou University of Chinese Medicine, Guangzhou 510405, China