Acknowledgements
RECRUITMENT
We acknowledge the contribution of all patients and study team members at each recruitment site. Most particularly, the research nurses Lisa Groarke and Bessie Cipriano. We also extend our thanks to the team members of the Centre for Oral Clinical Research (COCR) and Joint Research Management Office (JRMO) for Barts Health NHS Trust and Queen Mary University of London, who provided clinical and administrative support to the project. Haleon (prior GSKCH) is thanked for unconditional financial support and advice (Dr Stephen Mason and Dr Charlie Parkinson).