1. RCS England; Faculty of General Dental Practice (UK); 35-43 Lincoln's Inn Fields London UK WC2A 3PE
2. School of Dentistry, The University of Manchester; Cochrane Oral Health Group; JR Moore Building Oxford Road Manchester UK M13 9PL
3. University of Dundee; Division of Oral Health Sciences; Dental Hospital & School Park Place Dundee Scotland UK DD1 4HR
4. School of Medicine, University of Split; Cochrane Croatia; Soltanska 2 Split Splitsko-dalmatinska County Croatia 21 000
5. Catholic University of Croatia; Center for evidence-based medicine and health care; Ilica 242 Zagreb Croatia 10000
6. MTI Community College; Healthcare Faculty; Suite 200 4980 Kingsway Burnaby BC Canada V5H 4K7