RT Journal Article SR Electronic T1 Are randomised control trials best for evaluating the effect of complex physical therapy interventions? 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 bjsports-2017-098456 DO 10.1136/bjsports-2017-098456 A1 Håvard Østerås A1 Fredrik Paulsberg A1 Karin Gravare Silbernagel YR 2018 UL http://bjsm.bmj.com/content/early/2018/01/02/bjsports-2017-098456.abstract AB