1. Department of Molecular Pharmacology National Institute of Neuroscience, National Center of Neurology and Psychiatry Kodaira Tokyo Japan
2. Department of RNA Biology and Neuroscience Graduate School of Medicine, Osaka University Suita Osaka Japan
3. Department of Medical and Life Science, Graduate School of Pharmaceutical Sciences Tokyo University of Science Noda Chiba Japan
4. Department of Ultrastructural Research National Institute of Neuroscience, National Center of Neurology and Psychiatry Kodaira Tokyo Japan