Li, Guohua; Kelen, Gabor D.; Baker, Susan P.; Langlois, Jean A.
Department of Emergency Medicine Johns Hopkins University School of Medicine 600 North Wolfe Street, Marburg B194A Baltimore, MD 21287–2080
Center for Injury Research and Policy Johns Hopkins University School of Hygiene and Public Health Baltimore, MD
National Center for Injury Prevention and Control Centers for Disease Control Prevention Atlanta, GA
