1. Nursing Sciences, Program in Clinical Health Sciences, Utrecht University University Medical Center Utrecht Utrecht The Netherlands
2. Division Lung, St. Antonius Hospital Utrecht/Nieuwegein Nieuwegein The Netherlands
3. Nursing Science, Department of Gerontology and Geriatrics Leiden University Medical Centre Leiden The Netherlands
4. Nursing Science, Julius Centre for Health Sciences and Primary Care, University Medical Centre Utrecht Utrecht University Utrecht The Netherlands
5. Faculty of Medical and health sciences Linkoping University Linkoping Sweden
6. Division Heart and Lungs University Medical Centre Utrecht Utrecht The Netherlands