RT Journal Article SR Electronic T1 Synthesising ‘best evidence in systematic reviews when randomised controlled trials are absent: three tips for authors to add value for clinician readers 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 948 OP 949 DO 10.1136/bjsports-2017-097881 VO 52 IS 15 A1 Clare L Ardern A1 Marinus Winters YR 2018 UL http://bjsm.bmj.com/content/52/15/948.abstract AB