Y TAHA, M., Kh HASOUNI, M. and M KASIM, T. 2001. Prevalence of hepatitis B surface antigen in rural area in Mosul city. Al-Rafidain Dental Journal. 1, 3 (Dec. 2001), 271–278. DOI:https://doi.org/10.33899/rden.2020.166521.