Corresponding Author: Dr. Tae-Sun Ha

Department of Pediatrics, College of Medicine, Chungbuk National University, 1 Chungdae-ro, Seowon-gu, Cheongju, 28644 (Korea)
Tel. 82-43-269-6374, Fax 82-43-264-6620, E-Mail tsha@chungbuk.ac.kr