1. Kris Denhaerynck is a postdoctoral fellow and Sabina De Geest is a professor of nursing with the Institute of Nursing Science, University of Basel, Basel, Switzerland.
2. Dominique Manhaeve is a clinical trial leader with Tibotec BVBA, Mechelen, Belgium.
3. Fabienne Dobbels is a postdoctoral fellow at the Center for Health Services and Nursing Research, School of Public Health, Katholieke Universiteit Leuven, Leuven, Belgium.
4. Daniela Garzoni and Christa Nolte are an attending physician and a study nurse from the Department of Transplant Immunology and Nephrology, University Hospital Basel, Basel, Switzerland.