Funding for this research was provided by:
National Institute for Health Research (i4i II-LA-0313-20002)
Received: 8 January 2019
Accepted: 27 March 2019
First Online: 3 April 2019
Ethics approval and consent to participate
: Ethics approval was granted by the National Research Ethics Service in England (reference 16/WM/0164). All participants or their personal consultee gave informed consent consistent with the principles of the Declaration of Helsinki.
: Not applicable.
: Faming Tian is an employee of Sarissa Biomedical Ltd., manufacturer of the biosensor used, and is named on patents that are owned or licensed by Sarissa Biomedical. Nicholas Dale is a Director and Founder of Sarissa Biomedical Ltd., holds equity in that company and is named on patents that are owned or licensed by Sarissa Biomedical. All other authors declare that they have no competing interest.
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