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Article History

Received: 23 September 2021

Accepted: 5 December 2021

First Online: 4 January 2022

Declarations

:

: cases from the Peter MacCallum Cancer Centre Ethics Committee approval number 17/231R. Due to retrospective nature of the study and no intervention the consent from the individuals were waived. Cases from the Caen University Hospital: French observational studies without any additional therapy or monitoring procedure do not need the approval of an ethics committee. Notheless, in accordance with the European General Data Protection Regulation, we sought approval to collect data for this work from the national committee for data privacy, with the registration no. 2081250 v 0.

: Cases from the Peter MacCallum Cancer Centre: waived or covered by pre-existing consent provided within various clinical trials in which individual patients were enrolled. Cases from the Caen University Hospital: all patients refered to the PET unit receive written information for the use of anonymised images from their examinations for teaching and research purposes and may opt out.

: Professor Hicks is the Co-Editor-in-Chief of Cancer Imaging but had no role in assigning reviewers or any other aspect of the review process. For other authors there are none to disclose.