[1] ESEL Nursing Sch Lisbon, P-1600190 Lisbon, Portugal
[2] Inst Politecn Setubal, Escola Super Saude, Campus IPS Estefanilha, P-2910470 Setubal, Portugal
[3] Comprehens Hlth Res Ctr CHRC, P-1150082 Lisbon, Portugal
[4] EPE Hosp Sao Bernardo, Unidade Local Saude Arrabida, Setubal, Portugal
[5] Univ Ljubljana, Fac Hlth Sci, Ljubljana 1000, Slovenia
[6] Univ Manchester, Div Nursing Midwifery & Social Work, Manchester M13 9PL, England
[7] Med Univ Warsaw, Fac Hlth Sci, PL-02091 Warsaw, Poland
[8] Hosp Clin Barcelona, Fundacio Clin Recerca Biomed, Barcelona 08036, Spain
[9] Univ Coll Leuven Limburg, B-3590 Diepenbeek, Belgium
[10] HBO Verpleegkunde Genk, B-3600 Genk, Belgium
[11] Comprehens Hlth Res Ctr CHRC, P-7002554 Evora, Portugal