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.
Williams S, Hume PA, Kara S.Williams S, et al.Sports Med. 2011 Nov 1;41(11):903-23. doi: 10.2165/11593190-000000000-00000.Sports Med. 2011.PMID: 21985213Review.
Hislop MD, Stokes KA, Williams S, McKay CD, England M, Kemp SP, Trewartha G.Hislop MD, et al. Among authors: williams s.BMJ Open Sport Exerc Med. 2016 Jan 19;2(1):e000043. doi: 10.1136/bmjsem-2015-000043. eCollection 2016.BMJ Open Sport Exerc Med. 2016.PMID: 27900148Free PMC article.
Moran S, Booker H, Staines J, Williams S.Moran S, et al. Among authors: williams s.J Sports Med Phys Fitness. 2017 Sep;57(9):1147-1153. doi: 10.23736/S0022-4707.16.06827-4. Epub 2017 Jan 13.J Sports Med Phys Fitness. 2017.PMID: 28085123