Affiliation: | 1 Kennedy Krieger Institute, Baltimore, MD;2 Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD;3 Department of Physical Medicine and Rehabilitation, Johns Hopkins University School of Medicine, Baltimore, MD;4 Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD;5 VA Medical Center, Perry Point, MD;6 Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD |