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.
Loke YK, White JR, Bettencourt-Silva JH, Potter JF, Myint PK.Loke YK, et al.Postgrad Med J. 2013 Jun;89(1052):309-10. doi: 10.1136/postgradmedj-2012-131446.Postgrad Med J. 2013.PMID: 23686843Review.No abstract available.