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.
Hu X, Wesson DE, Parkin PC, Chipman ML, Spence LJ.Hu X, et al. Among authors: spence lj.Can J Public Health. 1994 Mar-Apr;85(2):121-4.Can J Public Health. 1994.PMID: 8012914
Hu X, Wesson DE, Parkin PC, Chipman ML, Spence LJ.Hu X, et al. Among authors: spence lj.Can J Public Health. 1993 May-Jun;84(3):163-5.Can J Public Health. 1993.PMID: 8358689
Hu X, Wesson DE, Kenney BD, Chipman ML, Spence LJ.Hu X, et al. Among authors: spence lj.CMAJ. 1993 Aug 15;149(4):421-7.CMAJ. 1993.PMID: 8348424Free PMC article.
Scorpio RJ, Wesson DE, Smith CR, Hu X, Spence LJ.Scorpio RJ, et al. Among authors: spence lj.J Trauma. 1996 Aug;41(2):306-9. doi: 10.1097/00005373-199608000-00018.J Trauma. 1996.PMID: 8760541