1. Department of Public Health Institute of Nursing Science University of Basel Basel Switzerland
2. Department of Public Health and Primary Care Academic Center for Nursing and Midwifery KU Leuven Leuven Belgium
3. Departments of Haematology and Oncology University Hospital Freiburg Freiburg im Breisgau Germany
4. Center of Clinical Nursing Science University Hospital Zurich Zürich Switzerland
5. Department of Health Zurich University of Applied Sciences (ZHAW) Winterthur Switzerland