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.
Luo J, Kesselheim AS.Luo J, et al. Among authors: kesselheim as.JAMA. 2014 Mar 5;311(9):965-6. doi: 10.1001/jama.2013.286454.JAMA. 2014.PMID: 24595789No abstract available.