1. Lovisenberg Diaconal University College; Oslo Norway
2. Faculty of Medicine; Department of Nursing Science; Institute of Health and Society; University of Oslo; Oslo Norway
3. Gjøvik University College; Gjøvik Norway
4. School of Nursing and Midwifery; La Trobe University; Melbourne Vic. Australia
5. Department of Nursing; Umeå University; Umeå Sweden