Hyung Suk Jin, M.D., Ho young Song, M.D., Sung Yoon Cho, M.D., Chang-Seok Ki, M.D., Song Hyun Yang, Ph.D., Ok-Hwa Kim, M.D., and Su Jin Kim, M.D. Green Cross Laboratories, Yongin; Department of Pediatrics, Myongji Hospital, Seonam University College of Medicine, Goyang; Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul; Department of Laboratory ...