Funding for this research was provided by:
Research Grants Council, University Grants Committee (C6011-16G, 15400414)
Text and Data Mining valid from 2018-11-20
First Online: 20 November 2018
Compliance with Ethical Standards
: None. The funders had no role in study design, data collection, data analysis, data interpretation, or manuscript preparation.
: Approvals for the ethical review of research projects involving human subjects were granted to the authors by their home universities. All procedures performed in this study 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.