Chaudhry S I, Morgan P R, Neill S M
Oral Medicine, Division of Maxillofacial Diagnostic, Medical and Surgical Sciences, Eastman Dental Institute for Oral Health Care Sciences, UCL, University of London, London, UK.
Clin Exp Dermatol. 2006 Nov;31(6):831-2. doi: 10.1111/j.1365-2230.2006.02219.x.