Funding for this research was provided by:
University of Manchester Research Institute
Article History
First Online: 9 June 2018
Compliance with Ethical Standards
:
: This study was funded by the University of Manchester Research Institute. The funding body had no role in the design, execution, analysis and interpretation of the data, or writing of the study.
: Fan Yang, Brenda Gannon and Andrew Weightman have no conflicts of interest to declare.
: The data that support the findings of this study are available from the corresponding author upon reasonable request.