Funding for this research was provided by:
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (31003A_138358)
Text and Data Mining valid from 2018-11-30
Received: 19 September 2018
Accepted: 23 November 2018
First Online: 30 November 2018
Compliance with ethical standards
: The datasets generated during the current study are available in the Zenodo (zenodo.org) repository, DOI: 0.5281/zenodo.1408508.
: The authors declare that they have no conflict of interest.