1. Department of Laboratory Medicine; School of Medicine; Kyung Hee University; 1 Hoegi-dong, Dongdaemun-gu; Seoul; Korea
2. Department of Pediatrics; School of Medicine; Kyung Hee University; 1 Hoegi-dong, Dongdaemun-gu; Seoul; Korea
3. Department of Surgery; School of Medicine; Ewha Women's University; Mok-dong, Yangcheon-gu; Seoul; Korea