Text and Data Mining valid from 2019-03-21
First Online: 21 March 2019
Compliance with Ethical Standards
: The authors declare that they have no conflicts of interest to report.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee, in accordance with American Psychological Association ethical standards, and with the 1964 Helsinki declaration and its later amendments. Informed consent was obtained for all participants.