Peisl, Sarah http://orcid.org/0000-0002-1215-6964
Zimmermann, Stefan
Camey, Bertrand
Betticher, Daniel
Bouchardy, Christine
Article History
Received: 11 December 2018
Accepted: 13 May 2019
First Online: 17 May 2019
Ethics approval and consent to participate
: The databases are not publicly available. Formal ethical approval and patient consent for this study was not required. The Fribourg cancer Registry has a general authorization to collect nominative data and to analyse the anonymized data.
: Not applicable.
: The authors declare that they have no competing interests.
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