[1] Wolfson Institute of Population Health,Centre for Evaluation and Methods
[2] Queen Mary University of London,Nuffield Department of Population Health
[3] University of Oxford,Wessex Regional Genetics Laboratory
[4] Wolfson Institute of Population Health,Asthma UK Centre for Applied Research, Wolfson Institute of Population Health, Barts and The London School of Medicine and Dentistry
[5] Queen Mary University of London,undefined
[6] Salisbury NHS Foundation Trust,undefined
[7] UC Davis Medical Center,undefined
[8] Queen Mary University of London,undefined
[9] North Central London CCG (Barnet Borough),undefined
[10] Treating Tobacco Dependence National Trainer,undefined