1 Nottingham Digestive Diseases Centre, School of Medicine, University of Nottingham, Nottingham, NIHR Nottingham Biomedical Research Centre (BRC), Nottingham University Hospitals NHS Trust and the University of Nottingham, Nottingham, UK, Nottingham University Hospitals NHS Trust, UK.
2 NIHR Nottingham Biomedical Research Centre (BRC), Nottingham University Hospitals NHS Trust and the University of Nottingham, Nottingham, UK, Nottingham University Hospitals NHS Trust, UK, Lifespan and Population Health, School of Medicine, University of Nottingham, Nottingham, UK, East Midlands Academic Health Science Network, University of Nottingham, Nottingham, UK.
3 Lifespan and Population Health, School of Medicine, University of Nottingham, Nottingham, UK.
4 Nottingham University Hospitals NHS Trust, UK.
5 Nottingham University Hospitals NHS Trust, UK, East Midlands Academic Health Science Network, University of Nottingham, Nottingham, UK.
6 NIHR Nottingham Biomedical Research Centre (BRC), Nottingham University Hospitals NHS Trust and the University of Nottingham, Nottingham, UK, Division of Respiratory Medicine, School of Medicine, University of Nottingham, Nottingham.
7 NIHR Nottingham Biomedical Research Centre (BRC), Nottingham University Hospitals NHS Trust and the University of Nottingham, Nottingham, UK, Nottingham University Hospitals NHS Trust, UK, Lifespan and Population Health, School of Medicine, University of Nottingham, Nottingham, UK.