1 Department of Pharmacy (Hannah), Hospital for Sick Children; Leslie Dan Faculty of Pharmacy (Hannah), University of Toronto; Department of Psychiatry (Fadel), Hospital for Sick Children; Division of Child and Youth Mental Health (Fadel), Department of Psychiatry, Temerty Faculty of Medicine, University of Toronto; Division of Adolescent Medicine (Tulloch), Hospital for Sick Children; Nicotine Dependence Clinic (Tulloch), Centre for Addiction and Mental Health, Toronto, Ont.
2 Department of Pharmacy (Hannah), Hospital for Sick Children; Leslie Dan Faculty of Pharmacy (Hannah), University of Toronto; Department of Psychiatry (Fadel), Hospital for Sick Children; Division of Child and Youth Mental Health (Fadel), Department of Psychiatry, Temerty Faculty of Medicine, University of Toronto; Division of Adolescent Medicine (Tulloch), Hospital for Sick Children; Nicotine Dependence Clinic (Tulloch), Centre for Addiction and Mental Health, Toronto, Ont. trisha.tulloch@sickkids.ca.