| 
							
      					 | 
  					
  					
    					 | 
   					
   										
    					| Effect of Retrograde Intrarenal Surgery on Oxidative Stress Reaction in Patients with Renal Calculus | 
  					
  					  										
						| YI Jiayou, ZENG Qing, ZHONG Yongfu | 
					
															
						| First-author's address: Department of Urology, Yichun Hospital of Traditional Chinese Medicine, Yichun 336000, China | 
					
										
						 |