Merritt's neurology / edited by Elan D. Louis, MD, MS, Professor of Neurology and Epidemiology, Chief, Division of Movement Disorders, Deartments of Neuology and Chronic Disease Epidemiology, Yale School of Medicine and Yale School of Public Health, Yale University, New Haven, Connecticut, Stephan A. Mayer, MD, FCCM, Professor of Neurology and Neurosurgery, Icahn School of Medicine at Mount Sinai, Director, Neurocritical Care, Mount Sinai Health System, New York, New York, Lewis P. Rowland, MD, Professor of Neurology, Chairman of Neurology, Emeritus, The Neurological Institute of New York, Columbia University Medical Center, New York, New York.