1. Scientific Institute for Quality of Healthcare (IQ Healthcare), Radboud Institute of Health Sciences (RIHS) Radboudumc Nijmegen The Netherlands
2. Netherlands Comprehensive Cancer Center (IKNL) Utrecht The Netherlands
3. Department of Oncology, Radboud Institute of Health Sciences (RIHS) Radboudumc Nijmegen The Netherlands
4. Janssen‐Cilag B.V. Pharmaceutical Companies of Johnson & Johnson Breda The Netherlands