| Affiliation: | 1. Department of Pediatrics, Hokkaido University Graduate School of Medicine, Sapporo, Japan;2. Deparrtment of Biological Sciences, Graduate School of Science, Osaka University, Osaka, Japan;3. Department of Pediatrics, Tokyo Womens' Medical University, Tokyo, Japan;4. Institute of Medical Genetics, Tokyo Womens' Medical University, Tokyo, Japan;5. Department of Mental Retardation and Birth Defect Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan |
