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Alastair D Hay, Kate Birnie, John Busby, Brendan Delaney, Harriet Downing, Jan Dudley, Stevo Durbaba, Margaret Fletcher, Kim Harman, William Hollingworth, Kerenza Hood, Robin Howe, Michael Lawton, Catherine Lisles, Paul Little, Alasdair MacGowan, Kathryn O’Brien, Timothy Pickles, Kate Rumsby, Jonathan AC Sterne, Emma Thomas-Jones, Judith van der Voort, Cherry-Ann Waldron, Penny Whiting, Mandy Wootton, Christopher C Butler & on behalf of the DUTY team.

Alastair D Hay ^1,*, Kate Birnie ², John Busby ², Brendan Delaney ³, Harriet Downing ¹, Jan Dudley ⁴, Stevo Durbaba ⁵, Margaret Fletcher ^6,7, Kim Harman ¹, William Hollingworth ², Kerenza Hood ⁸, Robin Howe ⁹, Michael Lawton ², Catherine Lisles ⁸, Paul Little ¹⁰, Alasdair MacGowan ¹¹, Kathryn O’Brien ¹², Timothy Pickles ⁸, Kate Rumsby ¹⁰, Jonathan AC Sterne ², Emma Thomas-Jones ⁸, Judith van der Voort ¹³, Cherry-Ann Waldron ⁸, Penny Whiting ², Mandy Wootton ⁹, Christopher C Butler ^12,14,

¹ Centre for Academic Primary Care, National Institute for Health Research (NIHR) School of Primary Care Research, School of Social and Community Medicine, University of Bristol, Bristol, UK
² School of Social and Community Medicine, University of Bristol, Bristol, UK
³ Department of Primary Care and Public Health Sciences, National Institute for Health Research (NIHR) Biomedical Research Centre at Guy’s and St Thomas’ NHS Foundation Trust and King’s College London, London, UK
⁴ Bristol Royal Hospital for Children, University Hospitals Bristol NHS Foundation Trust, Bristol, UK
⁵ Department of Primary Care and Public Health Sciences, Division of Health and Social Care Research, King’s College London, London, UK
⁶ Centre for Health and Clinical Research, University of the West of England, Bristol, UK
⁷ South West Medicines for Children Local Research Network, University Hospitals Bristol NHS Foundation Trust, Bristol, UK
⁸ South East Wales Trials Unit (SEWTU), Institute for Translation, Innovation, Methodology and Engagement, School of Medicine, Cardiff University, Cardiff, UK
⁹ Specialist Antimicrobial Chemotherapy Unit, Public Health Wales Microbiology Cardiff, University Hospital Wales, Cardiff, UK
¹⁰ Primary Care and Population Sciences Division, University of Southampton, Southampton, UK
¹¹ Southmead Hospital, North Bristol NHS Trust, Bristol, UK
¹² Cochrane Institute of Primary Care & Public Health, School of Medicine, Cardiff University, Cardiff, UK
¹³ Department of Paediatrics and Child Health, University Hospital of Wales, Cardiff, UK
¹⁴ Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
^* Corresponding author Email: alastair.hay@bristol.ac.uk