1. Department of Gastroenterology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences) Southern Medical University Guangzhou China
2. The Second School of Clinical Medicine Southern Medical University Guangzhou China
3. Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital Guangdong Academy of Medical Sciences Guangzhou China
4. School of Medicine South China University of Technology Guangzhou China
5. Shantou University Medical College Guangdong China
6. David Geffen School of Medicine University of California Los Angeles Los Angeles California USA
7. Sepulveda Ambulatory Care Center Veterans Affairs Greater Los Angeles Healthcare System Los Angeles California USA
8. Department of Biostatistics, School of Public Health Southern Medical University Guangzhou China
9. Department of Pharmacology, School of Medicine Southern University of Science and Technology, Shenzhen Guangdong China
10. Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Botnar Research Centre University of Oxford Oxford UK