RT Journal Article SR Electronic T1 Therapeutic ultrasound is not clinically beneficial for acute ankle sprains 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 241 OP 242 DO 10.1136/bjsports-2011-090894 VO 46 IS 4 A1 Michael Swain A1 Nicholas Henschke YR 2012 UL http://bjsm.bmj.com/content/46/4/241.abstract AB