Text and Data Mining valid from 2019-03-07
Received: 8 January 2019
Accepted: 26 February 2019
First Online: 7 March 2019
Compliance with Ethical Standards
: T.L. owns Yhat Enterprises, LLC, which operates his stats camps (ExternalRef removed). The remaining 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 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.