1. Department of Laboratory Medicine, University of Ulsan College of Medicine and Asan Medical Center, Seoul, Korea
2. Department of Laboratory Medicine, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea
3. Department of Laboratory Medicine, Hallym University College of Medicine, Hallym University Kangdong Sacred Heart Hospital, Seoul, Korea
4. Department of Laboratory Medicine, Inje University, Sanggye Paik Hospital, Seoul, Korea