Text and Data Mining valid from 2018-10-19
Received: 16 April 2018
Accepted: 18 September 2018
First Online: 19 October 2018
Ethics approval and consent to participate
: The current work was approved by the local ethical review committee (“Ethikkommission des Landes Oberösterreich”) under the following reference number: I-16-15.
: Not applicable.
: The authors declare that they have no competing interests. AL and BK are employees of the Upper Austrian Health Insurance.
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