[1] Queens Univ Belfast, Sch Nursing & Midwifery, 97 Lisburn Rd, Belfast BT9 7AE, Antrim, North Ireland
[2] Queens Univ Belfast, Sch Nursing & Midwifery, Canc & Palliat Care, Belfast, Antrim, North Ireland
[3] Univ Coll Dublin, Sch Nursing Midwifery & Hlth Syst, Dublin, Ireland
[4] Bournemouth Univ, Dept Social Sci & Social Work, Bournemouth, Dorset, England
[5] Vincents Univ Hosp, Ctr Palliat Care, Melbourne, Vic, Australia