1. Division of Pediatric and Developmental Neurology, Department of Neurology (KMB), Washington University School of Medicine in St. Louis, MO; Division of Child and Adolescent Psychiatry (CF), Departments of Psychiatry and Behavioral Sciences and Pediatrics; Division of Pediatric Rheumatology (TBG); Division of Pediatric Neurology (LMP); and Division of Pediatric Rheumatology (MV), Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN.