1. Division of Endocrinology and Metabolism, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea
2. Department of Internal Medicine, Busan Paik Hospital, Inje University College of Medicine, Busan, Korea
3. Department of Family Medicine, Konyang University Hospital, Konyang University College of Medicine, Daejeon, Korea
4. International Healthcare Center, Asan Medical Center, Seoul, Korea
5. Department of Family Medicine, Gil Medical Center, Gachon University College of Medicine, Incheon, Korea
6. Department of Physical Education, Korea Military Academy, Seoul, Korea
7. Department of Family Practice and Community Health, Ajou University School of Medicine (AUSOM), Daejeon, Korea
8. Department of Psychiatry, Konyang University College of Medicine, Daejeon, Korea
9. Department of Family Medicine, Korea University College of Medicine, Seoul, Korea
10. Department of Family Medicine, Eulji Hospital, Eulji University, Seoul, Korea
11. Department of Pediatrics, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
12. Department of Dietetics, Kangbuk Samsung Hospital, Seoul, Korea
13. Department of Surgery, Kyungpook National University Chilgok Hospital, School of Medicine, Kyungpook National University, Daegu, Korea
14. Division of Endocrinology and Metabolism, Department of Internal Medicine, Bucheon St Mary's Hospital, College of Medicine, The Catholic University of Korea, Bucheon, Korea
15. Department of Prescription and Rehabilitation of Exercise, College of Sport Science, Dankook University, Cheonan, Korea
16. Department of Pediatrics, National Medical Center, Seoul, Korea
17. Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
18. Central St' Marrys Clinic Internal Medicine, Daegu, Korea
19. Division of Endocrinology and Metabolism, Department of Internal Medicine, Catholic University of Daegu School of Medicine, Daegu, Korea
20. Department of Pediatrics, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Korea
21. Department of Pediatrics, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea
22. Division of Endocrinology and Metabolism, Department of Internal Medicine, Sejong General Hospital, Bucheon, Korea