Funding for this research was provided by:
Bundesministerium für Bildung und Forschung (01GL1705A-D)
Text and Data Mining valid from 2020-01-22
Received: 14 August 2019
Accepted: 28 November 2019
First Online: 22 January 2020
Ethics approval and consent to participate
: Ethical approval for the feasibility study was obtained from the Ethic Review Board of the Faculty of Behavioral and Cultural Studies at Heidelberg University (no approval number received). All participants provided written informed consent.
: Not applicable
: The authors declare that they have no competing interests.