1. Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
2. Division of Cardiology, Loma Linda University Health, Loma Linda, CA, USA
3. Center for Clinical Epidemiology and Clinical Statistics, Faculty of Medicine, Chiang Mai University, Thailand
4. Guanghua School of Management, Peking University, Beijing, China
5. Division of Cardiovascular Medicine, University of Utah Health, Salt Lake City, UT, USA