1. Faculty of Health, Medicine and Lifesciences CAPHRI Care and Public Health Research Institute Maastricht University Maastricht The Netherlands
2. Department of Nursing White Yellow Cross Limburg Genk Belgium
3. Hunter College The Graduate Center of City University of New York New York NY USA
4. Department of Public Health & primary Care Academic Centre for Nursing and Midwifery KU Leuven Leuven Belgium
5. Division of Geriatric Medicine University Hospitals Leuven Leuven Belgium