1 From the Department of Neuropsychiatry (A.E.C.), BSMHFT and University of Birmingham; School of Life and Health Sciences (A.E.C.), Aston University, Birmingham; University College London and Institute of Neurology (A.E.C.), London, UK; and Children's Mercy Hospital (K.A.C.), Kansas City, MO. A.E.Cavanna@bham.ac.uk.
2 From the Department of Neuropsychiatry (A.E.C.), BSMHFT and University of Birmingham; School of Life and Health Sciences (A.E.C.), Aston University, Birmingham; University College London and Institute of Neurology (A.E.C.), London, UK; and Children's Mercy Hospital (K.A.C.), Kansas City, MO.