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.
Stewart KA, Groen RS, Kamara TB, Farahzad MM, Samai M, Cassidy LD, Kushner AL, Wren SM.Stewart KA, et al. Among authors: kushner al.JAMA Surg. 2013 May;148(5):463-9. doi: 10.1001/jamasurg.2013.1341.JAMA Surg. 2013.PMID: 23325317Free PMC article.