1. St George's, University of London; Cochrane Airways, Population Health Research Institute; London UK SW17 0RE
2. University College London; Centre for Behavioural Medicine, Department of Practice and Policy, UCL School of Pharmacy; London UK
3. University College London; Department of Practice and Policy; London UK
4. BMJ; British Medical Journal Technology Assessment Group (BMJ-TAG); BMA House Tavistock Square London UK WC1H 9JR
5. Barts and The London School of Medicine and Dentistry, Queen Mary University of London; Centre for Primary Care and Public Health and Asthma UK Centre for Applied Research; London UK
6. Portsmouth Hospitals NHS Trust; Wessex Severe Asthma Centre; Portsmouth UK
7. Usher Institute of Population Health Sciences and Informatics, The University of Edinburgh; Asthma UK Centre for Applied Research; Edinburgh UK
8. The University of Edinburgh; Asthma UK Centre for Applied Research, Usher Institute of Population Health Sciences and Informatics; Teviot Place Edinburgh UK EH8 9AG