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Article History

Received: 10 May 2021

Accepted: 9 July 2021

First Online: 22 July 2021

Declarations

:

: This was a retrospective analysis of available patient data which was performed according to the Declaration of Helsinki and approved by the local ethics committee (Ethics committee, University Duisburg-Essen, faculty of medicine). Informed consent was obtained from all participating subjects.

: Not applicable.

: Hubertus Hautzel, Yazan Alnajdawi, Christoph Rischpler, Kaid Darwiche, Wilfried E. Eberhardt, Dirk Theegarten, Martin Stuschke, Clemens Aigner and Till Plönes have nothing to disclose. Wolfgang P. Fendler reports personal fees and other from Endocyte, personal fees and other from BTG, personal fees from RadioMedix, personal fees from Bayer Healthcare, personal fees from Parexel, outside the submitted work. Lale Umutlu reports grants, personal fees and other from Siemens Healthineers and personal fees and other from Bayer Healthcare outside the submitted work. Martin Schuler received research funding from AstraZeneca, Boehringer Ingelheim, and Bristol Myers-Squibb and reports personal fees from AstraZeneca, Boehringer Ingelheim, Bristol-Myers Squibb, GlaxoSmithKline, Janssen, MorphoSys, Novartis, Roche, Takeda, Amgen, MSD outside the submitted work. Ken Herrmann reports personal fees from Siemens Healthineers, personal fees from Bayer Healthcare, personal fees and other from Sofie Biosciences, personal fees from SIRTEX, non-financial support from ABX, personal fees from Adacap, personal fees from Curium, personal fees from Endocyte, grants and personal fees from BTG, personal fees from IPSEN, personal fees from GE Healthcare, personal fees from Amgen, personal fees from Novartis, personal fees from ymabs, outside the submitted work.