Ahmed, Suha A, and Ahlam H Majeed. “Immunohistochemical Expression of P16 and HER2 Neu in Normal Oral Mucosa, Oral Epithelial Dysplasia, and Oral Squamous Cell Carcinoma”. Journal of Baghdad College of Dentistry, vol. 26, no. 2, June 2014, pp. 94-98, https://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/456.