1. Department of Neurology, Zealand University Hospital, Roskilde, Denmark
2. Lienhard School of Nursing, Pace University, New York, NY, USA
3. Teachers College, Columbia University, New York, NY, USA
4. Section of Health Services Research Lillebaelt Hospital, University of Southern Denmark, Vejle Hospital, Vejle, Denmark
5. Institute of Health, Department of Nursing Science, Aarhus University, Copenhagen, Denmark