1 Department of Pediatrics, MacKay Children's Hospital, Taipei, Taiwan.
2 Department of Radiology, MacKay Memorial Hospital, Taipei, Taiwan.
3 Division of Pediatric Neurology, Department of Pediatrics, MacKay Memorial Hospital, Taipei, Taiwan; Department of Medicine, MacKay Medical College, New Taipei City, Taiwan. Electronic address: pedcsho@mmh.org.tw.