TY - JOUR T1 - Commentary on “Association of ground hardness with injuries in rugby union” JF - British Journal of Sports Medicine JO - Br J Sports Med SP - 587 LP - 587 VL - 41 IS - 9 AU - John W Orchard Y1 - 2007/09/01 UR - http://bjsm.bmj.com/content/41/9/587.abstract N2 - This study is another to demonstrate the early-season bias for injuries in rugby union, with a unique analysis of the variable, ground hardness, long thought to be … ER -