title: The knockout game: recreational assault and traumatic brain injury.
authors: Center for Injury Research and Prevention, Division of Emergency Medicine, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA; Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA. Electronic address: zonfrillo@email.chop.edu.
authors: Mark R
authors: MR
authors: Zonfrillo
authors: Center for Injury Research and Prevention, Division of Emergency Medicine, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA; Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
authors: Kristy B
authors: KB
authors: Arbogast
authors: Center for Injury Research and Prevention, Division of Emergency Medicine, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA; Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
authors: Joel A
authors: JA
authors: Fein
mesh_terms: D001930:Brain Injuries / Q000209:etiology* / Q000401:mortality; D006801:Humans; D011998:Recreation; D014754:Violence / Q000706:statistics & numerical data