Z. Hussain Wais, O. L. . Salman, S. Y. . AL Khafaji, and A. M. H. . Wais, “The Gingivitis and enamel defect among students of Dentistry College in Babylon, Iraq”, J Pak Assoc Dermatol, vol. 33, no. 4, pp. 1330–1334, Oct. 2023.