1. Department of Internal Medicine; Kyungpook National University Hospital/ School of Medicine
2. Department of Internal Medicine; Catholic University of Daegu School of Medicine
3. Department of Internal Medicine; Gyeongsang National University Hospital; Jinju
4. Department of Internal Medicine; Keimyung University School of Medicine
5. Department of Internal Medicine; Yeungnam University College of Medicine, Daegu
6. Department of Internal Medicine; Dongguk University School of Medicine; Gyeongju
7. Department of Internal Medicine; Soonchunhyang University Hospital; Gumi South Korea