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    					| The Aesthetic Effect and Safety of Alfentannil Compound Propofol in Elderly Patients with Painless Gastroscopy Examination | 
  					 
  					  										
						| PENG Pan | 
					 
															
						| First-author's address: Department of Anesthesiology, the Second Affiliated Hospital of Yichun University, Yichun 336000, China | 
					 
										
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