1 From the McGovern Medical School (E.C.A.), Division of Child and Adolescent Neurology, Department of Pediatrics (S.N.R.), and Division of Multiple Sclerosis and Neuroimmunology, Department of Neurology (C.A.P.), University of Texas Health Science Center at Houston.
2 From the McGovern Medical School (E.C.A.), Division of Child and Adolescent Neurology, Department of Pediatrics (S.N.R.), and Division of Multiple Sclerosis and Neuroimmunology, Department of Neurology (C.A.P.), University of Texas Health Science Center at Houston. Carlos.A.Perez@uth.tmc.edu.