Text and Data Mining valid from 2019-06-28
Received: 2 April 2019
Accepted: 27 May 2019
First Online: 28 June 2019
Ethics approval and consent to participate
: The use of human derived materials used in this manuscript were approved by the research ethics committee (NHS Health Research Authority, North East- Newcastle & North Tyneside), approval number: 11/NE/0291.
: Not applicable.
: R.B.G, J.D.E, E. G, G. B, A.D.B, C.B.N are employees and shareholders at GlaxoSmithKline.