Funding for this research was provided by:
Bundesministerium für Bildung und Forschung (03VP00851)
H2020 European Research Council (689617)
Text and Data Mining valid from 2019-06-19
Received: 21 January 2019
Accepted: 5 June 2019
First Online: 19 June 2019
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.