1. Department of Neurology; National Omuta Hospital; Fukuoka Japan
2. Department of Neurology, Faculty of Medicine; Fukuoka University; Fukuoka Japan
3. Department of Cancer Cell Biology; Mayo Clinic; Jacksonville Florida USA
4. Department of Medical Genetics; University of British Columbia; Vancouver British Columbia Canada
5. Division of Neurology, Department of Internal Medicine; Saga University Faculty of Medicine; Saga Japan