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Authors
Braun, Ueli https://orcid.org/0000-0002-2573-687X
Widmer, Christina
Nuss, Karl
Hilbe, Monika
Gerspach, Christian
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Article History
Received: 7 May 2021
Accepted: 2 September 2021
First Online: 25 September 2021
Declarations
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: The study was not submitted to our institutional ethics committee, because it was a retrospective study using medical records of calves that had been referred to our clinic for examination and treatment. No experimental animals were used. Under these circumstances, ethical approval is not required in Switzerland.
: All owners signed a consent form allowing us to use the animals and all the associated medical data for scientific analysis and publication.
: The authors declare that they have no competing interests.
