1. Saitama International Headache Center Saitama Neuropsychiatric Institute Saitama Japan
2. Department of Neurology Shonan Keiiku Hospital Kanagawa Japan
3. Nowon Eulji Medical Center Eulji University School of Medicine Seoul Korea
4. Department of Neurology Tatsuoka Neurology Clinic Kyoto Japan
5. Department of Neurology Japanese Red Cross Shizuoka Hospital Shizuoka Japan
6. Teva Branded Pharmaceutical Products R&D, Inc. West Chester PA USA
7. Specialty Clinical Development Teva Branded Pharmaceutical Products R&D, Inc. West Chester PA USA
8. Headquarters of Clinical Development Otsuka Pharmaceutical Co., Ltd. Tokyo Japan
9. Medical Affairs Otsuka Pharmaceutical Co., Ltd. Tokyo Japan
10. Medical Affairs Otsuka Pharmaceutical Co., Ltd. Tokushima Japan