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    					| The Effect of Multi-level Demand Nursing Combined with Staging and Grading Nursing Model on Patients with Lumbar Disc Herniation | 
  					 
  					  										
						| ZHANG Chunquan, RONG Qin | 
					 
															
						| First-author's address: Department of Orthopedics Ⅱ, the Second People's Hospital of Pingxiang, Pingxiang 337000, China | 
					 
										
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