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    					| Effect Analysis of Different Puncture Levels in the Treatment of Osteoporotic Vertebral Fracture during Percutoneous Kyphoplasty | 
  					
  					  										
						| SUN Jiao, CHEN Jin, CUI Wei, MA Chunyan, JIN Yao | 
					
															
						| First-author's address: Department of Orthopaedics, Xiangcheng People's Hospital of Suzhou, Suzhou 215131, China | 
					
										
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