<p><b>Copyright information:</b></p><p>Taken from "United States level I trauma centers are not created equal β a concern for patient safety?"</p><p>http://www.pssjournal.com/content/2/1/18</p><p>Patient Safety in Surgery 2008;2():18-18.</p><p>Published online 21 Jul 2008</p><p>PMCID:PMC2515286.</p><p></p