[1] Northumbria Univ, Fac Hlth & Life Sci, Dept Nursing Midwifery & Hlth, Newcastle Upon Tyne, Tyne & Wear, England
[2] Univ Oulu, Res Unit Nursing Sci & Hlth Management, Oulu, Finland
[3] Univ Bari Aldo Moro, Dept Biomed Sci & Human Oncol, Bari, Italy
[4] Politecn Marche Univ Ancona, Ancona, Italy
[5] Azienda Osped Univ Osped Riuniti Ancona, Via Conca 71, I-60100 Ancona, Italy