[1] Inst Technol Tralee, Dept Nursing & Healthcare Sci, Tralee, Ireland
[2] Univ Coll Cork, Sch Nursing & Midwifery, Cork, Ireland
[3] Kings Coll London, Florence Nightingale Fac Nursing Midwifery & Pall, London, England
[4] Osfold Univ Coll, Hlth Sci, Halden, Norway