1 Department of Pathology, Kangwon National University Hospital, Chuncheon, Republic of Korea.
2 Department of Pathology, Kangwon National University School of Medicine, Chuncheon, Republic of Korea.
3 Department of Laboratory Medicine, Kangwon National University School of Medicine, Chuncheon, Republic of Korea.
4 Department of Internal Medicine, Kangwon National University Hospital, Chuncheon, Republic of Korea.
5 Department of Pathology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, 300 Gumi-dong, Bundang-gu, Gyeonggi, Seongnam, Republic of Korea. paikjh@snu.ac.kr.