Document Type : Original Article
Authors
1 Oral pathogy, Faculty of Dentistry, AlAzhar University, Cairo, Boys
2 Lecturer of Oral and Dental Pathology, Department of Oral and Dental Pathology, Faculty of Dental Medicine (Cairo - Boys) Al-Azhar University, Egypt
3 Oral histology, Faculty of Dentistry, AlAzhar University, Cairo, Boys
Abstract
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