1. Senior researcher, Scientific Institute for Quality of Healthcare; Radboud university medical center; Nijmegen the Netherlands
2. Senior Research Fellow Nursing Science, Scientific Institute for Quality of Healthcare, Radboud university medical center, Nijmegen, the Netherlands and Faculty of Health Sciences; University of Southampton; Southampton UK
3. Emeritus Professor Critical Care, Faculty of Health and Social Studies; HAN University of Applied Sciences; Nijmegen the Netherlands
4. Was Professor of Nursing Science, Department of Public Health, Faculty of Medicine and Health Science; Ghent University; Gent Belgium
5. Geriatric Clinical Nurse Specialist, Orbis Medical Centre, Sittard-Geleen, Senior Lecturer; Zuyd University of Applied Sciences; Heerlen The Netherlands
6. Professor of Clinical Microbiology and Infection Control, Department of Medical Microbiology, Radboud university medical center, Nijmegen, the Netherlands and Consultant Clinical Microbiologist; Canisius-Wilhelmina Hospital; Nijmegen the Netherlands
7. Professor of Nursing Science, Scientific Institute for Quality of Healthcare, Radboud university medical center; Nijmegen, the Netherlands and Center for Health Services and Nursing Research; KU Leuven Leuven Belgium
8. Professor of Elderly Care Medicine, Department of Primary and Community Care, Centre for Family Medicine, Geriatric Care and Public Health; Radboud university medical center; Nijmegen the Netherlands