Competing interests
A.
LUNG, ASTHMA
B. G., H. J. C., S. B. and A. M. have received research funding from the Laura and John Arnold Foundation, the NHS National Institute for Health Research (NIHR), the NIHR School of Primary Care Research, NHS England, the NIHR Oxford Biomedical Research Centre, the Mohn-Westlake Foundation, NIHR Applied Research Collaboration Oxford and Thames Valley, the Wellcome Trust, the Good Thinking Foundation, Health Data Research UK, the Health Foundation, the World Health Organisation, UKRI MRC, Asthma UK, the British Lung Foundation and the Longitudinal Health and Wellbeing strand of the National Core Studies programme. B. G. is a Nonexecutive Director at NHS Digital; he also receives personal income from speaking and writing for lay audiences on the misuse of science. C. B. is employed by TPP, UK. R. A. is an employee of the UK Health Security Agency. All other authors declare that they have no competing interests.