1. Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands
2. Department Plastic Surgery, Catharina Hospital, Eindhoven, The Netherlands
3. Namur Research Institute for Life Sciences (NARILIS), Department of Biomedical Sciences, Faculty of Medicine, University of Namur, Namur, Belgium
4. Department of Health Services Research - Faculty of Medicine, University of Namur, Namur, Belgium
5. Department of Health Services Research, Care and Public Health Research Institute, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands
6. Department Plastic Surgery, Rijnstate Hospital, Arnhem, The Netherlands