1. Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, the Republic of Korea.
2. Department of Pediatrics, Korea University Guro Hospital, Korea University College of Medicine, Seoul, the Republic of Korea.
3. Department of Neurosurgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, the Republic of Korea.
4. Department of Pediatric Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, the Republic of Korea.
5. Department of Plastic Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, the Republic of Korea.
6. Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, the Republic of Korea.