1. Institute of Oncology Research Università della Svizzera Italiana Faculty of Biomedical Sciences Bellinzona Switzerland
2. Imaging Institute of Southern Switzerland, Clinic of Nuclear Medicine and PET‐CT Centre, Ente Ospedaliero Cantonale Lugano Switzerland
3. Oncology Institute of Southern Switzerland Medical Oncology Clinic, Ente Ospedaliero Cantonale Bellinzona Switzerland
4. Department of Medical Oncology Bern University Hospital University of Bern Bern Switzerland