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.
Kroll T, Jones GC, Kehn M, Neri MT.Kroll T, et al.Health Soc Care Community. 2006 Jul;14(4):284-93. doi: 10.1111/j.1365-2524.2006.00613.x.Health Soc Care Community. 2006.PMID: 16787479
Kehn M, Kroll T.Kehn M, et al. Among authors: kroll t.BMC Public Health. 2009 Jun 1;9:168. doi: 10.1186/1471-2458-9-168.BMC Public Health. 2009.PMID: 19486521Free PMC article.