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.
Dalen JE, Ryan KJ, Alpert JS.Dalen JE, et al.Am J Med. 2017 Jul;130(7):766-768. doi: 10.1016/j.amjmed.2017.01.026. Epub 2017 Feb 20.Am J Med. 2017.PMID: 28216448No abstract available.
Dalen JE, Ryan KJ, Alpert JS.Dalen JE, et al.Am J Med. 2018 Jan;131(1):2-4. doi: 10.1016/j.amjmed.2017.08.014. Epub 2017 Aug 31.Am J Med. 2018.PMID: 28864035No abstract available.