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.
Arnold PM, Burton DC, Khan TW, Dixon KA, Asher MA, Varghese G.Arnold PM, et al. Among authors: burton dc.J Med Pract Manage. 2013 Jan-Feb;28(4):220-4.J Med Pract Manage. 2013.PMID: 23547494
Burton DC, Asher MA, Lai SM.Burton DC, et al.Spine (Phila Pa 1976). 2002 Nov 1;27(21):2363-7. doi: 10.1097/00007632-200211010-00010.Spine (Phila Pa 1976). 2002.PMID: 12438985