[1] Queens Univ Belfast, Sch Pharm, Belfast, Antrim, North Ireland
[2] Queens Univ Belfast, Sch Nursing & Midwifery, Palliat Care, Belfast, Antrim, North Ireland
[3] Queens Univ Belfast, Sch Med Dent & Biomed Sci, Ctr Publ Hlth, Ageing & Geriatr Med, Belfast, Antrim, North Ireland
[4] Kerrsland Surg, Belfast, Antrim, North Ireland
[5] Univ Ulster, Inst Nursing & Hlth Res, Nursing, Ulster, North Ireland
[6] All Ireland Inst Hosp & Palliat Care, Dublin, Ireland
[7] Marie Curie Hosp, London, England
[8] Queens Univ Belfast, Sch Pharm, Pharm Practice, 97 Lisburn Rd, Belfast, Antrim, North Ireland