Article History
Received: 20 July 2017
Accepted: 22 March 2018
First Online: 2 April 2018
Authors’ information
: MZ is a PhD student at the Institute of Applied Health Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham. PA is a professor of chronic disease epidemiology and public health at the Institute of Applied Health Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham. BL is a research fellow at the Institute of Applied Health Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham. EF is a reader in health economics at the Health Economics Unit, Institute of Applied Health Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham.
: Not applicable.
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: The authors declare that they have no competing interests.
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