Affiliation: | 1 Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Ilsan Hospital, Goyangshi, Gyeonggi-do, Korea;2 Department of Internal Medicine, NHIC Medical Center, Ilsan Hospital, Goyangshi, Gyeonggi-do, Korea;3 Department of Pathology, NHIC Medical Center, Ilsan Hospital, Goyangshi, Gyeonggi-do, Korea |