1. Department of Pathology, College of Medicine, Inje University Ilsanpaik Hospital, Goyang, Korea.
2. Clinical Research Center, College of Medicine, Inje University Ilsanpaik Hospital, Goyang, Korea.
3. Department of Internal Medicine, College of Medicine, Inje University Ilsanpaik Hospital, Goyang, Korea.
4. Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.