Christopher B. Shields , M.D. (Co-Chair) Professor and Chairman, Department of Neurological Surgery A native of Canada, Dr. Shields earned his medical degree at the University of Toronto and served his neurosurgical residency at the University of Manitoba. Following fellowship training in Microvascular Neurosurgery at the University of Vermont in Burlington, he was a research fellow in Radiosurgery-Spinal Cord Regeneration at the University of Florida in Gainesville. nortonhealthcare