%0 Journal Article %A Marinus Winters %A Adam Weir %T Grey matters; on the importance of publication bias in systematic reviews %D 2017 %R 10.1136/bjsports-2016-096679 %J British Journal of Sports Medicine %P 488-489 %V 51 %N 6 %U https://bjsm.bmj.com/content/bjsports/51/6/488.full.pdf