RT Journal Article SR Electronic T1 Was it a good idea to combine the studies? Why clinicians should care about heterogeneity when making decisions based on systematic reviews JF British Journal of Sports Medicine JO Br J Sports Med FD BMJ Publishing Group Ltd and British Association of Sport and Exercise Medicine SP 399 OP 401 DO 10.1136/bjsports-2018-099516 VO 53 IS 7 A1 Hege Grindem A1 Mohammad Ali Mansournia A1 Britt Elin Ă˜iestad A1 Clare L Ardern YR 2019 UL http://bjsm.bmj.com/content/53/7/399.abstract AB