1. Division of Anatomy and Neurobiology, Department of Physiology and Cell Biology; Kobe University Graduate School of Medicine; 7-5-1 Kusunoki-cho Chuo-Ku Kobe 650-0017 Japan
2. Faculty of Health Care Sciences; Himeji Dokkyo University; 7-2-1 Kami-ono Himeji 670-8524 Japan
3. Department of Rehabilitation Science; Kobe University Graduate School of Health Sciences; 7-10-2 Tomogaoka Suma-Ku Kobe 654-0142 Japan