Oyetola , E. O., M. O. Ojo, I. . K. Mogaji, and A. O. Aremu. “ORAL ULCERATIONS IN CHRONIC KIDNEY DISEASE PATIENTS: EXPLORING THE RELATIONSHIP BETWEEN CLINICAL PRESENTATION OF THE ULCERS AND BLOOD UREA CONCENTRATION: Oral Ulcerations in Chronic Kidney Disease”. African Journal of Oral and Maxillofacial Pathology and Medicine, vol. 6, no. 1, Aug. 2020, pp. 13 -20, http://ajompm.com/index.php/ajmp/article/view/131.