1. Department of Neonatology Yamanashi Prefectural Central Hospital Yamanashi Japan
2. Department of Pediatrics University of Yamanashi Faculty of Medicine Graduate School of Medicine Yamanashi Japan
3. Department of Pediatric Surgery Yamanashi Prefectural Central Hospital Yamanashi Japan
4. Department of Pediatrics Yamanashi Prefectural Central Hospital Yamanashi Japan
5. Department of Pediatrics Fujiyoshida Municipal Hospital Yamanashi Japan
6. Department of Radiology Yamanashi Prefectural Central Hospital Yamanashi Japan
7. Department of Pathology Yamanashi Prefectural Central Hospital Yamanashi Japan