Article History
First Online: 12 July 2018
Compliance with Ethical Standards
: The study was approved by the Curtin University Ethics Committee (Approval Number HR185/2014/AR1) and pre-registered with the Australian and New Zealand Clinical Trials Registry (ACTRN12614001102662).
: The 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.