[1] Trinity Coll Dublin, Fac Hlth Sci, Sch Nursing & Midwifery, Dublin 2, Ireland
[2] Univ Lancaster, Div Hlth Res, Int Observ End Life Care, Lancaster, England
[3] Trinity Coll Dublin, Fac Hlth Sci, Sch Nursing & Midwifery, Ctr Practice & Healthcare Innovat, Dublin 2, Ireland