Text and Data Mining valid from 2019-08-01
Received: 8 January 2019
Accepted: 23 July 2019
First Online: 1 August 2019
Compliance with ethical standards
: The authors declare that they have no conflict of interests.
: This work received ethics approval from the University of Alberta Research Ethics Board and is in compliance with the ethical standards of this institutional 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.