Purpose:To investigate the significance of netrin-1 and vascular endothelial growth factor(VEGF) in the pathogenesis of ......

To gain the tradeoff between lower sidelobe and higher power amplifiers efficiency,a transmitting beam shaping scheme wi......

目的 应用光学相干断层扫描（optical coherence tomography,OCT）测量早产儿视盘周围视网膜神经纤维层（retinal nerve fiber layer,RNF......