1. Department of Gastroenterology, National Hospital Organization, Shimoshizu Hospital, Yotsukaido City, Japan.
2. Department of Radiology, National Hospital Organization, Shimoshizu Hospital, Yotsukaido City, Japan.
3. Department of Neurology, National Hospital Organization, Shimoshizu Hospital, Yotsukaido City, Japan.
4. Department of Rheumatology, National Hospital Organization, Shimoshizu Hospital, Yotsukaido City, Japan.
5. Department of Pediatrics, National Hospital Organization, Shimoshizu Hospital, Yotsukaido City, Japan.