RT Journal Article SR Electronic T1 Can legislation aimed at preventing sports-related concussions in youth succeed? JF Injury Prevention JO Inj Prev FD BMJ Publishing Group Ltd SP 138 OP 141 DO 10.1136/injuryprev-2013-040855 VO 20 IS 2 A1 Bhanu Sharma A1 Michael D Cusimano YR 2014 UL http://injuryprevention.bmj.com/content/20/2/138.abstract AB