Funding for this research was provided by:
Economic and Social Research Council (ES/J500215/1)
Japan Society for the Promotion of Science London (JSPS/L13515)
University of York International Seedcorn Award (N/A)
British Academy Early Career Networking Grant (N/A)
University of York Research Priming Fund (H0022034)
Text and Data Mining valid from 2019-11-21
Received: 4 January 2019
Accepted: 9 October 2019
First Online: 21 November 2019
Ethics approval and consent to participate
: Ethical approval was granted by the ethics committee at Kyoto University (submission number: 28-N-3) and the departmental ethics committee at the University of York (submission number: Id215). All participants provided written and informed consent in advance.
: Not applicable.
: The authors declare that they have no competing interests.