1. Director, Center for Evidence-Based Dentistry, The Forsyth Institute, 140 The Fenway, and Boston University Department of Health Policy and Health Services Research, Boston, MA 02115;
2. Director, Centre for Evidence-Based Density, Institute of Health Sciences, Oxford University, UK;
3. Co-Chair, Guideline Development, Canadian Collaboration on Clinical Practice Guidelines in Dentistry, Dalhousie University, Halifax, NS;
4. University of North Carolina, Chapel Hill, USA; and
5. Joint Coordinating Director, The Cochrane Collaboration, Oral Health Group, University of Manchester, UK;