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PATHOLOGY OF THE HEAD AND NECK: A RETROSPECTIVE APPRAISAL WILLEM F.P. VAN HEERDEN MChD, FC Path(SA), PhD Published work submitted to the University of Pretoria for the degree of Doctor of Science in Odontology (Oral Pathology) Promoter: Professor Dr A.J. Ligthelm Dean School of Dentistry Faculty of Health Sciences University of Pretoria June 2003 Examiners: Professor Dr W.H. Binnie Dallas, Texas, USA Professor Dr T. Solheim Oslo, Norway © University of Pretoria DECLARATION I, the undersigned, declare that the work contained in this presentation of publications is my own original work, as set forth in the statements which precede the published articles, and has not previously in its entirety or in part been submitted at any University for a degree. WFP VAN HEERDEN I certify that on the ..l~ . day of ...k ... 2003, Willem Francois Petrus van Heerden signed this declara~on i~my presence. CO'MM'IS·ski't.j'E·R"OF'OATHS"O'isf:·PTA Ref. 9/ 1/8/2 (AE) 91/05/28 . PROF JH MEIRING, School of Medi...