Text and Data Mining valid from 2016-12-01
Received: 15 June 2016
Accepted: 3 November 2016
First Online: 13 December 2016
: P.M.R. and J.R.P. are paid employees of Vertex Pharmaceuticals. Part of this work has been funded by Vertex Pharmaceuticals as part of a Sponsored Research Agreement between Vertex and The Institute of Cancer Research, London.