1. Department of Nursing Science, University Hospital Tuebingen, Tuebingen, Germany
2. Arthur Labatt Family School of Nursing, University of Western Ontario, London, ON, Canada
3. Centre for Postgraduate Nursing Studies, University of Otago-Christchurch Campus, New Zealand
4. Institute of Medical Biometry, University Hospital Heidelberg, Heidelberg, Germany
5. Department of General Practice and Health Services Research, University Hospital Heidelberg, Heidelberg, Germany
6. Bloorview Research Institute and Department of Occupational Science and Occupational Therapy, University of Toronto, Toronto, ON, Canada