1. Institution for Children with Profound Multiple Disabilities Kanagawa Children’s Medical Center Yokohama Japan
2. Department of Neurology Kanagawa Children’s Medical Center Yokohama Japan
3. Department of Urology Kanagawa Children’s Medical Center Yokohama Japan
4. Department of Urology Yokosuka Kyosai Hospital Yokosuka Japan
5. Department of Urology Sagamidai Hospital Zama Japan