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Document Type: Research Article
Affiliations: 1: Department of Oral Pathology and Oral Biology, University of Pretoria, Pretoria, 0001, Gauteng, South Africa. 2: Department of Pathology and Forensic Odontology, Faculty of Dentistry, University of Oslo, Norway. 3: Department of Statistics, University of Pretoria, South Africa.
Publication date: May 1, 2006