1. Dystonia Center and Movement Disorders Unit, Department of Neurology Massachusetts General Hospital and Harvard Medical School Boston Massachusetts USA
2. Functional Neurological Disorder Research Program, Department of Neurology Massachusetts General Hospital and Harvard Medical School Boston Massachusetts USA
3. Cognitive Behavioral Neurology Division, Department of Neurology Massachusetts General Hospital and Harvard Medical School Boston Massachusetts USA
4. Division of Neuropsychiatry, Department of Psychiatry Massachusetts General Hospital and Harvard Medical School Boston Massachusetts USA
5. Biostatistics Center, Department of Neurology Massachusetts General Hospital and Harvard Medical School Boston Massachusetts USA
6. Department of Epidemiology Harvard T. H. Chan School of Public Health Boston Massachusetts USA