Power, M; Tyrrell, PJ; Rudd, AG; Tully, MP; Dalton, D; Marshall, M; Chappell, I; ... Parry, G; + view all Power, M; Tyrrell, PJ; Rudd, AG; Tully, MP; Dalton, D; Marshall, M; Chappell, I; Corgié, D; Goldmann, D; Webb, D; Dixon-Woods, M; Parry, G; - view fewer (2014) Did a quality improvement collaborative make stroke care better? A cluster randomized trial. Implementation Science , 9 (1) , Article 40. 10.1186/1748-5908-9-40.