Funding for this research was provided by:
Österreichische Forschungsförderungsgesellschaft (FFG 823004, P-234)
Text and Data Mining valid from 2018-04-23
Received: 10 February 2018
Accepted: 16 April 2018
First Online: 23 April 2018
Ethics approval and consent to participate
: The study was carried out in accordance with the ethical standards of the 2008 Declaration of Helsinki and was approved by the Ethics Committee of the Medical University of Innsbruck (program code: UN3696 279/4.4).
: The authors declare that they have no competing interests. The authors alone are responsible for the content and writing of this article.
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