1. Department of Neurology University of Iowa Hospitals and Clinics Iowa City IA
2. Department of Neurointerventional Surgery Ascension Columbia St. Mary's Hospital Milwaukee WI
3. Department of Neurosciences Aurora Neuroscience Innovation Institute St. Luke's Hospital Milwaukee WI
4. Neurointerventional Radiology Abbott Northwestern Hospital Minneapolis MN
5. Department of Radiology and Neurosurgery University of Iowa Hospitals and Clinics Iowa City IA