PT - JOURNAL ARTICLE AU - Marinus Winters AU - Adam Weir TI - Grey matters; on the importance of publication bias in systematic reviews AID - 10.1136/bjsports-2016-096679 DP - 2017 Mar 01 TA - British Journal of Sports Medicine PG - 488--489 VI - 51 IP - 6 4099 - http://bjsm.bmj.com/content/51/6/488.short 4100 - http://bjsm.bmj.com/content/51/6/488.full SO - Br J Sports Med2017 Mar 01; 51