Funding
The study was funded by a National Institute of Health Research (NIHR300582) Advanced Fellowship, which included external peer review for scientific quality and a patient and public involvement panel. It is supported by the National Institute for Health Research (NIHR) Applied Research Collaboration South London (NIHR ARC South London) at King’s College Hospital NHS Foundation Trust. The views expressed are those of the author(s) and not necessarily those of the NIHR or the Department of Health and Social Care, who played no role in conducting the research and writing the paper.