1. Department of Epidemiology School of Public Health and Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases Medical College of Soochow University Suzhou China
2. Department of Epidemiology Tulane University School of Public Health and Tropical Medicine New Orleans LA
3. Department of Epidemiology School of Public Health Chongqing Medical University Chongqing China
4. Department of Medicine Tulane University School of Medicine New Orleans LA