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This study is led by Professor Trisha Greenhalgh, Professor in Primary Care, University of Oxford.

Prof Greenhalgh's research is supported by Oxford National Institute for Health Research Biomedical Research Centre (grant no BRC-1215-20008) and by the UKRI COVID-19 Emergency Fund. 

The study team includes clinical researchers from the University of Oxford, supported by medical students at King's College London and the University of Nottingham 

The study is sponsored by the University of Oxford and has received ethical approval through the internal University ethics review system. 

If you have any questions about taking part, please email Dr Nicholas Jones at