Text and Data Mining valid from 2018-05-21
Received: 13 December 2017
Accepted: 11 May 2018
First Online: 21 May 2018
Ethics approval and consent to participate
: The study protocol has been approved by the hospitals’ ethics committee prior to the study beginning (November 2016, study ID 161098). An approved written informed consent is obtained from all patients at the time of enrolment.
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