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Article History

Received: 29 April 2025

Accepted: 14 April 2026

First Online: 9 May 2026

Declarations

:

: The ethics committee of the University of Regensburg approved the study on 26/09/2019 (19-1522-101). Prior to the start of the interview, the interviewer verified again that written informed consent for the study had been given. Every participant actively agreed to be part of the study and informed consent was obtained according to the Helsinki Declaration. Personal information was only collected on the consent form and stored separately from study data. Transcripts of the interviews were de-identified (pseudonymised). The feasibility study was registered at ClinicalTrials.gov (NCT04186468).

: To protect participant confidentiality, all efforts have been made to ensure that identifying information is minimised in this publication. However, due to the nature of the study and the specific context of the qualitative interviews, there is a possibility that some individuals may be recognisable. All participants provided informed consent to the use of their data and to publish the results. The clinical study team further agreed to the publication of their contributions, including the potential for identification.

: The authors declare that there are no competing interests.