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    					| Observation on the Analgesic Effect of Bilateral Erector Ridge Muscle Plane Block after Lumbar Posterior Approach Surgery | 
  					
  					  										
						| JIN Jianjun, YU Zhengming, LI Kai | 
					
															
						| First-author's address: Anesthesiology Department, Pingxiang Hospital of Traditional Chinese Medicine, Pingxiang 337000, China | 
					
										
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