title: Introduction: history and development of the practice parameters.
authors.forename: J E
authors.initials: JE
authors.lastname: Dunne
mesh_terms: D000293:Adolescent; D000296:Adolescent Psychiatry / Q000639:trends*; D002665:Child Psychiatry / Q000639:trends*; D002675:Child, Preschool; D017408:Guidelines as Topic; D006801:Humans