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    					| Effect of Growth Hormone Intrauterine Perfusion Therapy on Repeated Embryo Implantation Failure and Its Influence on Uterine Artery Blood Flow Parameters and Embryo Implantation Rate | 
  					 
  					  										
						| LYU Yingpin, TAN Huifang, GAO Jing | 
					 
															
						| First-author's address: Department of Reproductive Medicine, Qingdao University Affiliated Hospital, Qingdao 266000, China | 
					 
										
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