Funding for this research was provided by:
Ulrich Müller-Gierok Foundation
Text and Data Mining valid from 2018-06-05
Received: 7 January 2018
Accepted: 24 May 2018
First Online: 5 June 2018
Ethics approval and consent to participate
: The protocol of this study received Ethics Committee approval from Northwest - and Central Switzerland; Ref. Nr. EK: 710, amendment 2.All participating patients gave their written informed consent.
: The authors declare that they have no competing interests.
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