Funding for this research was provided by:
Text and Data Mining valid from 2019-01-24
First Online: 24 January 2019
Compliance with Ethical Standards
: 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. Ethical approval for the study was obtained from the Faculty of Health and Life Sciences Ethical committee, Northumbria University.
: Informed consent was obtained from all individual participants included in the study.
: The authors declare that they have no conflict of interest.