1. Unilever Oral Care; Bebington; UK
2. Periodontal Research Group & MRC Centre for Immune Regulation; The University of Birmingham; Birmingham; UK
3. School of Medicine, Dentistry and Biomedical Sciences; Queen's University of Belfast; Belfast; UK
4. School of Pharmacy; Queen's University of Belfast; Belfast; UK
5. School of Dental Medicine; University of Pennsylvania; Philadelphia; PA; USA
6. Liverpool Dental Hospital; Liverpool; UK