José Biller, MD, FACP, FAAN, FAHA is Professor and Chairman at the Department of Neurology, Loyola University Chicago Stritch School of Medicine, Maywood, IL, USA.
José M. Ferro, MD, PhD is Professor of Neurology and Head of the Department of Neurology, University of Lisbon, and Head of the Stroke Unit at the Hospital de Santa Maria, Lisbon, Portugal.