PECARN prediction rule for cervical spine imaging of children presenting to the emergency department with blunt trauma: a multicentre prospective observational study. - Leonard JC; Harding M; Cook LJ; Leonard JR; Adelgais KM; Ahmad FA; Browne LR; Burger RK; Chaudhari PP; Corwin DJ; Glomb NW; Lee LK; et al. (The Lancet. Child & adolescent health, 2024)