Original Article
The preservation effect of coronary collateral circulation on left ventricular function in chronic total occlusion and its association with the expression of vascular endothelial growth factor A
Yuxiang Dai, Shufu Chang, Shen Wang, Yi Shen, Chenguang Li, Zheyong Huang, Hao Lu, Juying Qian, Lei Ge, Qibing Wang, Feng Zhang, Junbo Ge
493-497