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2. Multicentric peripheral ameloblastoma;Balfour;Journal of Oral Surgery,1973
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4. Basal cell carcinoma from mucosal surface of lower lip. Report of case;Keen;Journal of Oral Surgery,1964
5. Basal cell carcinoma of the gingiva. Report of a case;Lawson;Oral Surgery, Oral Medicine and Oral Pathology,1967