Hamza, Ameer S, and Jamal N Ahmed. “Assessment of the Oral Findings, Salivary Oxidative Status and IgA Level Among Group of Workers Exposed to Petroleum Pollutants in Al-Daura Oil Refinery”. Journal of Baghdad College of Dentistry 27, no. 2 (June 15, 2015): 48–53. Accessed November 22, 2024. https://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/710.