Collaborators George Davey-Smith, M.D. Epidemiology University of Bristol Pavel Hamet, M.D. Cardiovascular Genetics Centre hospitalier de l’Université de Montreal Richard Lerner, Ph.D Adolescent DevelopmentTufts University Jackie Lerner, Ph.D Adolescent DevelopmentTufts University Gunter Schumann, M.D. Addiction GeneticsKing’s College London Roberto Toro, Ph.D Developmental Neuroanatomy & Modelling Institut Pasteur Richard Tremblay, Ph.D Developmental Psychopathology Université de Montréal