Affiliation: | 1. Department of Radiology, Saitama Children's Medical Center, Saitama, Japan;2. Department of Pediatrics, Keio University School of Medicine, Tokyo, Japan;3. Department of Pediatric Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan;4. Department of Surgery, Saitama Children's Medical Center, Saitama, Japan;5. Department of Diagnostic Radiology, Keio University School of Medicine, Tokyo, Japan |