Strategies to address the shortcomings of commonly used advanced chronic heart failure descriptors to improve recruitment in palliative care research: A parallel mixed-methods feasibility study. - Kane PM; Murtagh FEM; Ryan KR; Brice M; Mahon NG; McAdam B; McQuillan R; O'Gara G; Raleigh C; Tracey C; Howley C; Higginson IJ; et al. (Palliative medicine, 2018)