RT Journal Article SR Electronic T1 Should this systematic review and meta-analysis change my practice? Part 2: exploring the role of the comparator, diversity, risk of bias and confidence 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 1493 OP 1497 DO 10.1136/bjsports-2018-099959 VO 53 IS 23 A1 Mervyn J Travers A1 Myles Calder Murphy A1 James Robert Debenham A1 Paola Chivers A1 Max K Bulsara A1 Matthew K Bagg A1 Thorvaldur Skulli Palsson A1 William Gibson YR 2019 UL http://bjsm.bmj.com/content/53/23/1493.abstract AB