1. Department of Neurology University of Iowa Carver College of Medicine, Comprehensive Stroke Center Iowa City Iowa USA
2. Department of Neurosurgery University of Iowa Carver College of Medicine, Comprehensive Stroke Center Iowa City Iowa USA
3. Department of Radiology University of Iowa Carver College of Medicine, Comprehensive Stroke Center Iowa City Iowa USA
4. Imaging and Therapy Systems Siemens Healthcare Forchheim Germany
5. Aurora Neuroscience Innovation Milwaukee Wisconsin USA
6. Department of Radiology University of Wisconsin School of Medicine and Public Health Madison Wisconsin USA
7. Department of Neurology Yale University School of Medicine New Haven Connecticut USA