Funding for this research was provided by:
Medical Research Council (MR/L011794/1)
Article History
Received: 22 November 2018
Accepted: 19 August 2019
First Online: 28 August 2019
Compliance with ethical standards
:
: Huajie Jin, Paul McCrone and James MacCabe have no conflicts of interest that are directly relevant to the contents of this study.