1. Clinical and Diagnostic Oral Sciences, Barts and The London School of Medicine and Dentistry; Queen Mary University of London; London UK
2. Cochrane Oral Health; Division of Dentistry, School of Medical Sciences, Faculty of Biology, Medicine and Health, The University of Manchester; Manchester UK
3. Division of Dentistry, School of Medical Sciences, Faculty of Biology, Medicine and Health; The University of Manchester; Manchester UK
4. Oxford UK