1. Department of Diagnostic Imaging and Nuclear MedicineGraduate School of Medicine, Kyoto University Kyoto Japan
2. Human Brain Research CenterGraduate School of Medicine, Kyoto University Kyoto Japan
3. Department of Diabetes, Endocrinology and NutritionGraduate School of Medicine, Kyoto University Kyoto Japan
4. Department of NeurosurgeryGraduate School of Medicine, Kyoto University Kyoto Japan