Practice guideline update: Botulinum neurotoxin for the treatment of blepharospasm, cervical dystonia, adult spasticity, and headache Report of the Guideline Development Subcommittee of the American Academy of Neurology

1) Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY 2) Human Motor Control Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 3) Department of Neurology, Bronson Neuroscience Center, Bronson Methodist Hospital, Kalamazoo, MI 4) Department of Neurological Sciences, Rush University Medical Center, Chicago, IL 5) Department of Neurology, University of Kansas School of Medicine, Kansas City 6) Department of Neurology, University of Maryland, Baltimore 7) Department of Neurology, Geisinger Health System, Danville, PA 8) Department of Neurology, Kaiser Permanente Los Angeles Medical Center, CA 9) Parkinson’s Disease Center and Movement Disorders Clinic, Department of Neurology, Baylor College of Medicine, Houston, TX 10) National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 11) Department of Neurology and Clinical Neurophysiology, Klinikum Augsburg, Augsburg, Germany 12) Department of Neurology and Neurological Sciences, Stanford University, Palo Alto, CA 13) Division of Physical Medicine and Rehabilitation, University of Alberta, Edmonton, Canada