Received: 21 November 2018
Accepted: 30 July 2019
First Online: 6 August 2019
Ethics approval and consent to participate
: The Research Committee of Science and Ethical Questions of the University of Applied Sciences Tyrol (RCSEQ) confirmed that this study did not involve participants from a particularly vulnerable group and that no personal sensitive data were used (RCSEQ Nr. 2022). Thus, no Ethics Committee vote was required. The participants in the study gave written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.