Affiliation: | 1. Department of Neurology, Beijing Tiantan Hospital affiliated Capital Medical University, , Beijing, China;2. Department of Neurology, OSF Healthcare Systems, Illinois Neurological Institute Stroke Network, University of Illinois College of Medicine at Peoria, , Peoria, IL, USA;3. Department of Neurosurgery, Wayne State University, , Detroit, MI, USA;4. Department of Ultrasound, Beijing Tiantan Hospital affiliated Capital Medical University, , Beijing, China |