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    					| Comparison of Sedation Effect of Dexmedetomidine and Midazolam under Combined Spinal-epidural Anesthesia on Elderly Patients Undergoing Hip Replacement | 
  					
  					  										
						| MIAO Qian, YE Zhenyuan, ZHANG Pingheng | 
					
															
						| First-author's address: Anesthesiology Department, Shangrao People's Hospital, Shangrao 334000, China | 
					
										
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