Text and Data Mining valid from 2019-07-22
Received: 1 April 2019
Accepted: 30 May 2019
First Online: 22 July 2019
Ethics approval and consent to participate
: The study was approved by the Ethic Committee of Bern, Northwest- and Central Switzerland (EKNZ 2015-349, HVF, Kat A) and every patient signed an informed consent before inclusion in the trial.
: Not applicable.
: The authors declare that they have no competing interests.
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