Proton Therapy Facilities in Japan National Institute of Radiological Sciences Proton Medical Research Center University of Tsukuba National Cancer Center Hospital East Hyogo Ion Beam Medical Center Shizuoka Cancer Center Proton Therapy Facilities in Overseas PSI(Paul Scherrer Institute) GSI(Gesellschaft für Schwerionenforschung mbH) MGH(Massachusetts General Hospital) Loma Linda University Medical Center