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.
Terry PE, Fowles JB, Xi M, Harvey L.Terry PE, et al.Am J Health Promot. 2011 Nov-Dec;26(2):e64-73. doi: 10.4278/ajhp.091029-QUAN-348.Am J Health Promot. 2011.PMID: 22040398Clinical Trial.
Terry PE; Editors From the American Journal of Health Promotion.Terry PE, et al.Am J Health Promot. 2015 Jan-Feb;29(3):TAHP9-10.Am J Health Promot. 2015.PMID: 25710063