OSMAN , T., A. OMER, R. BDELMONEM, N. IBRAHIM, R. SIRAG, S. ZAIN-ELABDEEN, and N. KHALIFA. “Epidemiology of Sharp Injuries and Hepatitis B Vaccination Among Sudanese Dental House Officers”. International Arab Journal of Dentistry (IAJD), Vol. 6, no. 1, Feb. 2015, pp. 29-36, doi:10.70174/iajd.v6i1.199.