[1] Univ Eastern Finland, Fac Hlth Sci, Dept Nursing Sci, POB 1627, FI-70211 Kuopio, Finland
[2] Univ Malta, Fac Hlth Sci, Dept Nursing, RM 71, MSD-2080 Valletta, Malta
[3] Univ Malta, Fac Hlth Sci, Dept Nursing, RM 36, MSD-2080 Valletta, Malta
[4] Univ Int Catalunya, Fac Med & Hlth Sci, Dept Nursing, C Josep Trueta S-N, Barcelona 08195, Spain
[5] Univ Edinburgh, Sch Hlth Social Sci, Med Sch, Nursing Studies, Teviot Pl, Edinburgh EH8 9AG, Scotland
[6] Constantine Philosopher Univ Nitra, Fac Social Sci & Hlth Care, Dept Nursing, Tr A Hlinku 1, Nitra 94901, Slovakia
[7] Univ Turku, Fac Med, Fac Social Sci, Dept Nursing Sci,Dept Psychol, Turku 20014, Finland
[8] Univ Turku, Fac Med, Dept Nursing Sci, FI-20014 Turku, Finland