A multimodal intervention to optimise antimicrobial use in residential aged care facilities (ENGAGEMENT): protocol for a stepped-wedge cluster randomised trial. - Falconer N; Paterson DL; Peel N; Welch A; Freeman C; Burkett E; Hubbard R; Comans T; Hanjani LS; Pascoe E; Hawley C; Gray L (Trials, 2022)