1. Department of Internal Medicine, Pusan Paik Hospital, College of Medicine; Inje University; Busan; Republic of Korea
2. Department of Chemistry; Seoul National University; Seoul; Republic of Korea
3. Paik Institute for Clinical Research, Pusan Paik Hospital, College of Medicine; Inje University; Busan; Republic of Korea
4. Department of Pathology, Pusan Paik Hospital, College of Medicine; Inje University; Busan; Republic of Korea