1. The Fourth Department of Internal Medicine, Saitama Medical Center, Saitama Medical School
2. The Department of Otolaryngology, Saitama Medical Center, Saitama Medical School
3. The Department of Pathology, Saitama Medical Center, Saitama Medical School
4. The Department of Neurology, Tokyo Metropolitan Neurological Hospital
5. Toyobo Gene Analysis Co. LTD, Tsuruga and 5Ueno Hospital Internal Medicine
6. Ueno Hospital Internal Medicine