Chief physician, doctoral supervisor. Present director, Cerebrovascular Disease Center, War Trauma Center of Shanghai Changhai Hospital. Director, All-army Cerebrovascular Research Institute. Visiting Professor, University of Toronto, Canada. Vice Director, Management Expert Committee, National Stroke Centre of China. Vice Chairman, Chinese Stroke Specialist Alliance. Vice Chairman, Neurointervention Branch of Chinese Medical Doctor Association. Standing Committee Member, Neurosurgery Branch of Chinese Medical Doctor Association. Standing Committee Member, Neurosurgery Branch of Chinese Medical Association. Vice Chairman, All-army Neurosurgery Committee. Chairman, Neurointervention Committee of Shanghai Medical Doctor Association. Committee Member, World Live Neurovascular Conference(WLNC). Chairman, 2021 International Intracranial Stent Meeting (ICS). Chairman, 2016/2021 WLNC. Chairman, East Asian Conference on Neurointervention(EACoN). Chief Editor, Brainmed.com-Neurointervention News.