1. Department of Laboratory Medicine Ewha Womans University Seoul Hospital Seoul Republic of Korea
2. Department of Laboratory Medicine Kangbuk Samsung Hospital Sungkyunkwan University School of Medicine Seoul Republic of Korea
3. Department of Internal Medicine Kangbuk Samsung Hospital Sungkyunkwan University School of Medicine Seoul Republic of Korea
4. Department of Laboratory Medicine Geyongsang National University Changwon Hospital Changwon Republic of Korea
5. Department of Laboratory Medicine Samsung Medical Center Sungkyunkwan University School of Medicine Seoul Republic of Korea