Taher, Mustafa Gheni, et al. “Immunohistochemical Expression of Antioxidants CypA in Oral Squamous Cell Carcinoma Compared to Normal Oral Mucosa in Relation to Clinicopathological Parameters”. Diyala Journal of Medicine, vol. 13, no. 2, Aug. 2018, pp. 91-103, https://www.djm.uodiyala.edu.iq/index.php/djm/article/view/106.