Al – Azzawi , Lehadh M. “Immunohistochemical Analysis of PCNA and P53 Proteins in Oral Lichen Planus,Oral Dysplasia and Normal Oral Mucosa”. Diyala Journal of Medicine 6, no. 1 (November 1, 2019): 41–47. Accessed August 19, 2025. https://djm.uodiyala.edu.iq/index.php/djm/article/view/362.