mohammad reza mohammadi department of psychiatry, roozbeh hospital, psychiatry and psychology research centre, tehran university of medical sciences department of child and adolescent psychiatry, institute of psychiatry, king's college, university of london, uk eric fombonne canada research chair in child psychiatry, mcgill university director of the department of psychiatry, montreal children`s hospital, montreal, canada eric taylor department of child and adolescent psychiatry, institute of psychiatry, king's college, university of london, uk