Funding for this research was provided by:
Northumbria University
Article History
Received: 18 January 2019
Revised: 15 February 2019
Accepted: 26 February 2019
First Online: 11 May 2019
Compliance with ethical standards
:
: The authors declare that they have no competing interests.
: This study received ethical approval from the Department of Applied Sciences, Northumbria University (Ethics Reference Number 1086).
: Blood serum samples were obtained from the CEPA Biobank, Newcastle upon Tyne Hospitals NHS Foundation Trust (ExternalRef removed).