Chang-Hun Park, M.D., Kiyoung Yoo, M.D., Ki-O Lee, M.T., Sun-Hee Kim, Ph.D., Ki-Woong Sung, Ph.D., and Hee-Jin Kim, Ph.D. Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul; Korea Hemophilia Foundation, Seoul; Samsung Biomedical Research Institute, Samsung Medical Center, Seoul; Department of Pediatrics, Samsung Medical Cent...