1. Department of Radiology, Yokohama Minami Kyohsai Hospital
2. Department of Radiology, Yokohama Sakae Kyohsai Hospital
3. Department of Radiology, Kawasaki Saiwai Hospital
4. Department of FUS Center, Moriyama Neurological Center Hospital
5. Department of Radiology, Showa University Northern Yokohama Hospital
6. Department of Radiology, Showa University Hospital
7. Department of Radiology, Tokai University Oiso Hospital
8. Department of Radiology, Showa University Fujigaoka Hospital