1. Clinical Imaging Centre, GlaxoSmithKline Research and Development, Hammersmith Hospital; London UK
2. NIHR Respiratory Biomedical Research Unit, Royal Brompton and Harefield NHS Foundation Trust and National Heart & Lung Institute, Imperial College London; London SW3 6NP UK
3. Global Imaging Unit, GlaxoSmithKline Research and Development; Stevenage UK
4. Division of Brain Sciences; Imperial College; London UK
5. Imanova Centre for Imaging Sciences, Hammersmith Hospital; London UK