A cluster randomised controlled trial of an occupational therapy intervention for residents with stroke living in UK care homes (OTCH): study protocol oleh Sackley Cath M, Burton Chris R, Herron-Marx Sandy, Lett Karen, Mant Jonathan, Roalfe Andrea K, Sharp Leslie J, Sheehan Bart, Stant Katie E, Walker Marion F, Watkins Caroline L, Wheatley Keith, Williams Jane, Yao Guiqing L, Feltham Max G