Text and Data Mining valid from 2018-05-31
First Online: 31 May 2018
Compliance with Ethical Standards
: All procedures performed in this study which involved human participants were in accordance with the ethical standards of the institution and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained for participation in this research.
: The last author receives small royalties from sales of the PEAK curriculum.