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Authors
Clerc, Valérie https://orcid.org/0009-0002-6712-7834
Stiefel, Friedrich https://orcid.org/0000-0003-0326-7918
Schaad, Béatrice https://orcid.org/0000-0002-4884-2413
Bourquin, Céline https://orcid.org/0000-0001-9584-2929
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Funding
Funding for this research was provided by:
University of Lausanne
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Article History
Received: 27 September 2024
Accepted: 7 January 2026
First Online: 24 January 2026
Declarations
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: The Ethics Committee of the Canton of Vaud (CER-VD) exempted this study from ethical review because it does not fall within the scope of the Swiss Human Research Act (HRA) and therefore does not require authorization (Req-2020-01046). Full data protection was guaranteed, and identification or re-identification of individuals who submitted compliment letters – and their children, who were the patients – was rendered impossible.
: Not applicable.
: The authors declare no competing interests.
