1. School of Dentistry, The University of Manchester; JR Moore Building Oxford Road Manchester UK M13 9PL
2. School of Dentistry, The University of Manchester; Cochrane Oral Health Group; JR Moore Building Oxford Road Manchester UK M13 9PL
3. New York University College of Dentistry; Oral Maxillofacial Pathology, Radiology and Medicine; 345 East 24th Street NYC 1st floor New York USA 10010