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.
Batra A, Page T, Melchior M, Seff L, Vieira ER, Palmer RC.Batra A, et al.Health Educ Res. 2013 Dec;28(6):1067-79. doi: 10.1093/her/cyt099. Epub 2013 Oct 11.Health Educ Res. 2013.PMID: 24122324
Batra A, Melchior M, Seff L, Frederick N, Palmer RC.Batra A, et al.Prev Chronic Dis. 2012;9:E13. Epub 2011 Dec 15.Prev Chronic Dis. 2012.PMID: 22172180Free PMC article.