1 Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.
2 Department of Radiology, Shuang Ho Hospital, Ministry of Health and Welfare, Taipei Medical University, Taipei, Taiwan.
3 Department of Neurosurgery, Shuang Ho Hospital, Ministry of Health and Welfare, Taipei Medical University, Taipei, Taiwan.
4 Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Pediatrics, Shuang Ho Hospital, Ministry of Health and Welfare, Taipei Medical University, Taipei, Taiwan. Electronic address: pedkuoyt@s.tmu.edu.tw.