1. Child and Adolescent Psychiatry and Psychology Department Hospital Sant Joan de Déu of Barcelona Barcelona Spain
2. Department of Psychiatry Research, The Feinstein Institute for Medical Research The Zucker Hillside Hospital Glen Oaks New York
3. Children and Adolescent Mental Health Research Group Institut de Recerca Sant Joan de Déu Barcelona Spain
4. Institut de Neuropsiquiatria i Addiccions Centre de Salut Mental Infantil i Juvenil Sant Martí‐La Mina i Ciutat Vella, Parc de Salut Mar Barcelona Spain
5. Centre for Youth Bipolar Disorder Sunnybrook Health Sciences Centre Toronto Ontario Canada
6. Departments of Psychiatry and Pharmacology University of Toronto Toronto Ontario Canada
7. Department of Psychiatry, Western Psychiatric Institute and Clinic University of Pittsburgh School of Medicine Pittsburgh Pennsylvania