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.
van Strien T, van der Linden-van der Zwaag E, Kaptein B, van Erkel A, Valstar E, Nelissen R.van Strien T, et al.Int Orthop. 2009 Oct;33(5):1255-61. doi: 10.1007/s00264-008-0642-8. Epub 2008 Aug 29.Int Orthop. 2009.PMID: 18758777Free PMC article.Clinical Trial.