Funding for this research was provided by:
Deutsche Krebshilfe (not applicable)
Received: 26 June 2020
Accepted: 21 July 2020
First Online: 5 August 2020
Ethics approval and consent to participate
: The Ethics Committee of the medical faculty of Heidelberg University approved this study on November 5th 2018 and on August 19th 2019 (S-708/2018).
: Not applicable.
: S.A. received grants from Accuray International Sàrl and Merck Serono GmbH outside the submitted work. J.D. received grants from CRI – The Clinical Research Institue GmbH, View Ray Inc., Accuray International Sàrl, Accuray Incorporated, RaySearch Laboratories AB, Vision RT limited, Merck Serono GmbH, Astellas Pharma GmbH, Astra Zeneca GmbH, Solution Akademie GmbH, Ergomed PLC Surrey Research Park, Siemens Healthcare GmbH, Quintiles GmbH, Pharmaceutecal Research Associates GmbH, Boehringer Ingelheim Pharma GmbH Co, PTW-Freiburg Dr. Pychlau GmbH, Nanobiotix A.A. outside the submitted work. The other authors declare no conflict of interest.