This study is being run by the Bristol Trials Centre, in collaboration with University Hospitals Bristol and Weston NHS Foundation Trust and the University of Oxford. The Chief Investigator is Dr Rajeka Lazarus.
The study was delivered by a network of sites across England and Wales.
This study is funded by the National Institute for Health Research (NIHR). The views expressed are those of the author(s) and not necessarily those of the NHS, the NIHR or the Department of Health.