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.
Wheatley CM, Snyder EM, Johnson BD, Olson TP.Wheatley CM, et al. Among authors: olson tp.Springerplus. 2014 Aug 20;3:445. doi: 10.1186/2193-1801-3-445. eCollection 2014.Springerplus. 2014.PMID: 25191635Free PMC article.