Chairman NHS Quality Improvement Scotland, Emeritus Professor of Neurosurgery, University of Glasgow, UK
Professor of Neurosurgery, University of San Diego, California
Associate Professor of Neuropsychology, Department of Neurosurgery, Pennsylvania State University
Professor of Epidemiology, Erasmus MC Rotterdam
Professor of Anaesthesia and Neurointensive care, University of Milan, Italy
Professor of Epidemiology, University of Iowa
Professor of Neurosurgery, University of Texas Medical School Houston
Professor of Neuropsychology, University of Stirling, UK
Emeritus Professor, Emergency Medicine, University of Manchester, UK
Programme Director Repair and Plasticity, NIH/NINDS