Acknowledgements
LCC is funded by the National Institute for Health Research (NIHR) Professorship, RP-2014–05–019. Paul T Seed is partly funded by King’s Health Partners Institute of Women and Children’s Health, Tommy’s (Registered charity no. 1060508) and by ARC South London (NIHR). The views expressed in this publication are those of the authors and not necessarily those of KHP, Tommy’s, the NHS, the NIHR or the Department of Health. We thank the independent Trial Steering Committee (David Williams, Judith Hibbert, Julia Sanders, Deborah Stocken, Julian Walters, Win Tin) and the independent Data Monitoring Committee (John Norrie, William McGuire, Jenny Myers).