Observational Study on Thrombectomy in Acute Middle Cerebral Artery Occlusion  
HAN Zhi-An,DING Ming-Xiang, LIU Tian-Zhu, et al.
Chinese Journal of Stroke . 2017, (07): 584 -587 .  DOI: 10.3969/j.issn.1673-5765.2017.07.004