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    					| Effect of Patient-controlled Analgesia with Sufentanil Combined with Esketamine on Immunomodulatory Cells and Inflammatory Factors in Patients after Radical Resection of Intestinal Tumors | 
  					 
  					  										
						| GONG Jianping, LIU Yuyan, HUANG Yizhou, LIANG Xiusheng, LIU Xiaodan, LI Heng | 
					 
															
						| First-author's address: Department of Anesthesiology, Qingyuan Hospital Affiliated to Guangzhou Medical University, Qingyuan 511518, China | 
					 
										
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