1. Department of Internal Medicine, Research Institute of Clinical Medicine, Jeonbuk National University Medical School‐Biomedical Research Institute Jeonbuk National University Hospital Jeonju South Korea
2. Department of Internal Medicine, College of Medicine, Seoul St. Mary's Hospital The Catholic University of Korea Seoul South Korea
3. Department of Internal Medicine Busan St. Mary's Hospital Busan South Korea
4. Department of Internal Medicine, Wonju Severance Christian Hospital Yonsei University Wonju College of Medicine Wonju South Korea
5. Department of Internal Medicine, Myongji Hospital Hanyang University College of Medicine Goyang South Korea
6. Department of Internal Medicine, College of Medicine, St. Vincent's Hospital The Catholic University of Korea Suwon South Korea
7. Department of Internal Medicine Chonnam National University Medical School Gwangju South Korea
8. Department of Internal Medicine Daegu Catholic University School of Medicine Daegu South Korea
9. Department of Internal Medicine Keimyung University School of Medicine Daegu South Korea
10. Department of Internal Medicine Pusan National University Hospital Busan South Korea
11. Department of Internal Medicine Sejong General Hospital Bucheon South Korea
12. Department of Internal Medicine, Cardiovascular and Metabolic Disease Center, Inje University Sanggye Paik Hospital Inje University College of Medicine Seoul South Korea