Affiliation: | 1. Department of Internal Medicine, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea;2. Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea;1. Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Republic of Korea;2. Department of Internal Medicine, Seoul National University Hospital, Seoul National University College of Medicine, Republic of Korea |