?:authorAffiliation
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[\'Department of Neurology, University of Missouri, Columbia, Missouri.\', \'Department of Neurology and Neurology Clinical Trials Unit, Massachusetts General Hospital, Boston, Massachusetts.\', \'Healey Center for ALS at Mass General Hospital, Massachusetts General Hospital, Boston, Massachusetts and Spaulding Rehabilitation Hospital, Department of PM&R, Harvard Medical School, Boston, Massachusetts.\', \'Department of Neurology, University of Florida, Jacksonville, Florida.\', \'Department of Neurology, Penn State Health M.S. Hershey Medical Center, Hershey, Pennsylvania.\']
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