[1] Univ Basel, Inst Nursing Sci, Basel, Switzerland
[2] Katholieke Univ Leuven, Acad Ctr Nursing & Midwifery, Leuven, Belgium
[3] Univ Missouri, Schoolf Nursing & Hlth Studies, Kansas City, MO 64110 USA
[4] Univ Hosp Leuven, Leuven, Belgium
[5] Univ Hosp A Coruna, La Coruna, Spain