Mahmood, Ahmed S, Ban S Diab, and Natheer H AL-Rawi. “The Relationship Between Gingival Pigmentation and Periodontal Health Among a Cohort of College Students Residing in Diyala City, Iraq”. Journal of Baghdad College of Dentistry 37, no. 2 (June 15, 2025): 21–26. Accessed June 28, 2025. https://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/3964.