Professor Emeritus of Neurosurgery, University of Cambridge UK

Professor of Neurology and Neurosurgery UCLA

Prof Emeritus Med Col Wisconsin

Western University, Lawson Health Research Institute, Parkwood

Professor Harvard Medical School

Professor, Department of Paediatrics, The Hospital for Sick Children, University of Toronto

US Army Institute of Surgical Research, Centers for Disease Control, National Institute on …

Boston Children's Hospital, Harvard Medical School

Professor of Biomedical Engineering, Georgia Tech and Emory University

Chair, Dept of Surgery Feinberg School of Med, Northwestern Univ. Surgeon-in-Chief, NMH