1. Department of Pediatrics; Aichi Medical University; Nagakute Japan
2. Department of Neurosurgery; Aichi Medical University; Nagakute Japan
3. Department of Radiology; Aichi Medical University; Nagakute Japan
4. Department of Pathology; Aichi Medical University; Nagakute Japan
5. Clinical Department of Pathology; Gunma University Hospital; Maebashi Japan