Abdominal ultrasound (FAST) in hemodynamically stable children with blunt abdominal trauma: study protocol for a randomized controlled trial.

Holmes JF, Tancredi DJ, Kelley KM, Griffiths M, Gold DL, Lam SHF, Stone B, Brenkert T, Andrade AN, Hanson E, Gwal K, Kornblith A, Hirose S, Utter GH, Kuppermann N