| 
                                    
                                        gptkbp:instanceOf
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:radiation_therapy
                                        
                                         
                                    
                                        
                                            gptkb:Cancer_treatment
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:associatedWith
                                    
                                 | 
                                
                                    
                                        
                                            
                                            Lower risk of secondary malignancies
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:availableOn
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:Asia
                                        
                                         
                                    
                                        
                                            gptkb:Australia
                                        
                                         
                                    
                                        
                                            gptkb:Canada
                                        
                                         
                                    
                                        
                                            gptkb:China
                                        
                                         
                                    
                                        
                                            gptkb:Europe
                                        
                                         
                                    
                                        
                                            gptkb:France
                                        
                                         
                                    
                                        
                                            gptkb:Germany
                                        
                                         
                                    
                                        
                                            gptkb:India
                                        
                                         
                                    
                                        
                                            gptkb:Italy
                                        
                                         
                                    
                                        
                                            gptkb:Japan
                                        
                                         
                                    
                                        
                                            gptkb:Netherlands
                                        
                                         
                                    
                                        
                                            gptkb:Russia
                                        
                                         
                                    
                                        
                                            gptkb:South_Korea
                                        
                                         
                                    
                                        
                                            gptkb:Sweden
                                        
                                         
                                    
                                        
                                            gptkb:Switzerland
                                        
                                         
                                    
                                        
                                            gptkb:United_Kingdom
                                        
                                         
                                    
                                        
                                            gptkb:United_States
                                        
                                         
                                    
                                        
                                            
                                            Specialized cancer centers
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:combines
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:immunotherapy
                                        
                                         
                                    
                                        
                                            
                                            Surgery
                                        
                                        
                                         
                                    
                                        
                                            
                                            Chemotherapy
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:covers
                                    
                                 | 
                                
                                    
                                        
                                            
                                            Some health insurance plans
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:is_approved_by
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:U.S._Food_and_Drug_Administration
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:is_delivered_in
                                    
                                 | 
                                
                                    
                                        
                                            
                                            Fractions over several weeks
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:is_more_expensive_than
                                    
                                 | 
                                
                                    
                                        
                                            
                                            Conventional radiation therapy
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:is_more_precise_than
                                    
                                 | 
                                
                                    
                                        
                                            
                                            Conventional X-ray radiation therapy
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:is_not_widely_available_in
                                    
                                 | 
                                
                                    
                                        
                                            
                                            All countries
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:is_researched_for
                                    
                                 | 
                                
                                    
                                        
                                            
                                            Pediatric brain tumors
                                        
                                        
                                         
                                    
                                        
                                            
                                            Recurrent cancers
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:reduces
                                    
                                 | 
                                
                                    
                                        
                                            
                                            Damage to surrounding healthy tissue
                                        
                                        
                                         
                                    
                                        
                                            
                                            Long-term side effects
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:regulates
                                    
                                 | 
                                
                                    
                                        
                                            
                                            National and international health authorities
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:requires
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:particle_physics_experiment
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:treatment
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:cancer
                                        
                                         
                                    
                                        
                                            
                                            Tumors
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:type
                                    
                                 | 
                                
                                    
                                        
                                            
                                            External beam radiotherapy
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:usedFor
                                    
                                 | 
                                
                                    
                                        
                                            
                                            Brain tumors
                                        
                                        
                                         
                                    
                                        
                                            
                                            Head and neck cancers
                                        
                                        
                                         
                                    
                                        
                                            
                                            Ocular tumors
                                        
                                        
                                         
                                    
                                        
                                            
                                            Pediatric cancers
                                        
                                        
                                         
                                    
                                        
                                            
                                            Prostate cancer
                                        
                                        
                                         
                                    
                                        
                                            
                                            Spinal tumors
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:uses
                                    
                                 | 
                                
                                    
                                        
                                            
                                            Proton beams
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:was_first_proposed_by
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:Robert_R._Wilson
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:was_first_used_clinically
                                    
                                 | 
                                
                                    
                                        
                                            
                                            1954
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:تسمى_أيضا
                                    
                                 | 
                                
                                    
                                        
                                            
                                            Proton beam therapy
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:bfsParent
                                    
                                 | 
                                
                                    
                                        
                                            gptkb:Proton
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        gptkbp:bfsLayer
                                    
                                 | 
                                
                                    
                                        
                                            
                                            6
                                        
                                        
                                         
                                    
                                 | 
                            
                        
                            
                                | 
                                    
                                        https://www.w3.org/2000/01/rdf-schema#label
                                    
                                 | 
                                
                                    
                                        
                                            
                                            Proton therapy
                                        
                                        
                                         
                                    
                                 |