1. Department of Otolaryngology Tokyo Metropolitan Children's Medical Center Fuchu Japan
2. Schizophrenia Research Project Tokyo Metropolitan Institute of Medical Science Setagaya Japan
3. Course of Molecular and Cellular Medicine Niigata University Faculty of Medicine Graduate School of Medical and Dental Science Niigata Japan
4. Department of Plastic and Reconstructive Surgery Tokyo Metropolitan Children's Medical Center Fuchu Japan
5. Department of Otolaryngology‐Head and Neck Surgery Tokyo Metropolitan Tama Medical Center Fuchu Japan