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.
Sumner SA, Layde PM.Sumner SA, et al. Among authors: layde pm.JAMA. 2009 Aug 19;302(7):787-9. doi: 10.1001/jama.2009.1214.JAMA. 2009.PMID: 19690312No abstract available.
Perry MJ, Marbella A, Layde PM.Perry MJ, et al. Among authors: layde pm.Am J Ind Med. 2002 Jan;41(1):70-3. doi: 10.1002/ajim.10026.Am J Ind Med. 2002.PMID: 11757057
Perry MJ, Marbella A, Layde PM.Perry MJ, et al. Among authors: layde pm.Am J Health Promot. 1999 Sep-Oct;14(1):18-21, iii. doi: 10.4278/0890-1171-14.1.18.Am J Health Promot. 1999.PMID: 10621520