1. Tissue Engineering and Regenerative Medicine Centre, Imperial College, London, UK.
2. Centre for Respiratory Research, University College London, London, UK.
3. Adult Intensive Care Unit, Royal Brompton Hospital, London, UK.
4. Centre for Diabetes and Metabolic Medicine, Queen Mary, University of London, London, UK.
5. Department of Histopathology, Royal Marsden Hospital, London, UK.
6. Department of Histopathology, Harefield Hospital, Middlesex, UK.