An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Quistberg DA, Koepsell TD, Miranda JJ, Ng Boyle L, Johnston BD, Ebel BE.Quistberg DA, et al. Among authors: koepsell td.Traffic Inj Prev. 2015;16(3):314-21. doi: 10.1080/15389588.2014.930830. Epub 2014 Nov 10.Traffic Inj Prev. 2015.PMID: 24950345Free PMC article.
Ebel BE, Koepsell TD, Bennett EE, Rivara FP.Ebel BE, et al. Among authors: koepsell td.JAMA. 2003 Feb 19;289(7):879-84. doi: 10.1001/jama.289.7.879.JAMA. 2003.PMID: 12588272Clinical Trial.