title: After Littleton.
authors.affiliation: University of Pittsburgh School of Nursing, PA, USA.
authors.forename: W M
authors.initials: WM
authors.lastname: Doswell
mesh_terms: D000293:Adolescent; D002648:Child; D003120:Colorado; D006801:Humans; D008297:Male; D012573:School Nursing; D012574:Schools; D014481:United States; D014754:Violence / Q000517:prevention & control*