1. Gene Therapy Group, National Heart and Lung Institute, Imperial College London, London, United Kingdom
2. UK CF Gene Therapy Consortium, London, United Kingdom
3. Centre for Genomic and Experimental Medicine, IGMM, University of Edinburgh, Edinburgh, United Kingdom
4. Nuffield Division of Clinical Laboratory Sciences, Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom
5. The Roslin Institute & R(D)SVS, Easter Bush Campus, University of Edinburgh, Edinburgh, United Kingdom.