1. Glasgow Dental Hospital and School; Biodental Sciences, Glasgow Dental School; 378 Sauchiehall Street Glasgow UK G23JZ
2. School of Dentistry, The University of Manchester; TMD Unit, Prosthodontics; Higher Cambridge Street Manchester UK M15 6FH
3. The Beeches Consulting Centre; Oral and Maxillofacial Surgery; Mill Lane Cheadle Cheshire UK SK8 2PY
4. Royal Victoria Infirmary; Department of Cellular Pathology; Queen Victoria Road Newcastle upon Tyne UK NE1 4LP
5. School of Dentistry, The University of Manchester; Cochrane Oral Health Group; JR Moore Building Oxford Road Manchester UK M13 9PL