[1] School of Medicine,Department of Health Promotion Medicine
[2] Ewha Womans University,Department of Internal Medicine, School of Medicine
[3] Ewha Womans University,Department of Internal Medicine
[4] Hanyang University Guri Hospital,Department of Internal Medicine, Gangnam Severance Hospital
[5] Yonsei University College of Medicine,Department of Internal Medicine, Digestive Disease Research Institute
[6] Wonkwang University College of Medicine,Department of Internal Medicine, Kyung Hee University Hospital at Gang Dong
[7] Kyung Hee University School of Medicine,Department of Internal Medicine
[8] Kangwon National University School of Medicine,Department of Internal Medicine and Liver Research Institute
[9] Seoul National University College of Medicine,Department of Internal Medicine
[10] Yonsei University College of Medicine,Department of Internal Medicine, Cheonan Hospital
[11] Soonchunhyang University College of Medicine,Department of Internal Medicine, Seoul Hospital
[12] Soonchunhyang University College of Medicine,Department of Internal Medicine
[13] Chonnam National University Medical School,Department of Internal Medicine, Kangbuk Samsung Hospital
[14] Sungkyunkwan University School of Medicine,undefined