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.
Oyetunji TA, Chang DC, Crompton JG, Greene WR, Efron DT, Haut ER, Cornwell EE 3rd, Haider AH.Oyetunji TA, et al. Among authors: chang dc.Arch Surg. 2011 Jul;146(7):865-9. doi: 10.1001/archsurg.2011.154.Arch Surg. 2011.PMID: 21768435