Older Persons’ Transitions in Care (OPTIC): a study protocol oleh Cummings Greta G, Reid R Colin, Estabrooks Carole A, Norton Peter G, Cummings Garnet E, Rowe Brian H, Abel Stephanie L, Bissell Laura, Bottorff Joan L, Robinson Carole A, Wagg Adrian, Lee Jacques S, Lynch Susan L, Masaoud Elmabrok