| 
							
      					 | 
  					
  					
    					 | 
   					
   										
    					| Analysis of Setup Errors in Thoracic Tumors Radiotherapy under Different Registration Methods Guided by X-ray Volume Imaging | 
  					
  					  										
						| ZHAO Wenlong, LIU Pan, ZHU Tong, LIU Jingjie | 
					
															
						| First-author's address: Department of Radiation Oncology, Ji’an Central People's Hospital, Ji’an 343000, China | 
					
										
						 |