1. Queen Mary University of London; Clinical and Diagnostic Oral Sciences, Barts and The London School of Medicine and Dentistry; Turner Street Whitechapel London UK E1 2AD
2. University of Bristol; School of Social and Community Medicine; Canynge Hall 39 Whatley Road Bristol UK BS8 2PS
3. University of Exeter Medical School; NIHR CLAHRC South West Peninsula (PenCLAHRC); Veysey Building Salmon Pool Lane Exeter UK EX2 4SG
4. University College London Medical School; London UK