1. Department of Laboratory Medicine, Yonsei University College of Medicine, Severance Hospital, Seoul, Korea
2. Department of Pathology, Yonsei University College of Medicine, Yongin Severance Hospital, Yongin, Korea
3. Department of Laboratory Medicine, Myongji Hospital, Goyang, Korea
4. Department of Laboratory Medicine, Yonsei University College of Medicine, Yongin Severance Hospital, Yongin, Korea