Received: 17 November 2021
Accepted: 26 January 2022
First Online: 14 February 2022
: The Ethics Committee of the Albert-Ludwigs-University of Freiburg, Germany, approved the study (study number 243/13 and 236/16). The design and performance of the study are in accordance with the Declaration of Helsinki. Signed informed consent was obtained from all participants before inclusion, allowing analysis of tumor tissue, blood samples and clinical data.
: Not applicable.
: The authors declare that they have no competing interests.