http://dx.doi.org/10.1136/bjsports-2013-092734 | | | | DOI Link |
http://bjsm.bmj.com/content/48/2/91.full | 10/20/2014 | | Item is within a limited-access website | |
http://bjsm.bmj.com/content/48/2/91.full.pdf | 10/20/2014 | PDF Reader | Item is within a limited-access website | |