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Authors
Petersen, Morten Aa. https://orcid.org/0000-0002-3117-632X
Vachon, Hugo
Aaronson, Neil K.
Giesinger, Johannes M.
Holzner, Bernhard
Sztankay, Monika
Groenvold, Mogens
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Funding
Funding for this research was provided by:
Copenhagen University
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Article History
Received: 4 March 2026
Accepted: 1 August 2026
First Online: 12 August 2026
Declarations
Conflict of interest: The authors have no conflict of interest, specifically the authors do not have any financial interests that are directly or indirectly related to the results of this work. The EORTC CAT Core and any CAT based on this are copyrighted, with all rights reserved by the EORTC Quality of Life Group. Academic use of EORTC instruments requires no fee. For commercial use the EORTC requires a compensation fee.
Ethical approval: The study was approved by the local ethics committees of the participating hospitals/countries and by the Danish Data Protection Agency (Ref. No. 2006-41-6928). Written informed consent was obtained in accordance with local requirements. All procedures involving human participants were conducted in accordance with local ethical standards and the Declaration of Helsinki (1964) and its later amendments, or comparable ethical standards.
