Hamza AS, Ahmed JN. Assessment of the oral findings, salivary oxidative status and IgA level among group of workers exposed to petroleum pollutants in Al-Daura oil refinery. J Bagh Coll Dent [Internet]. 2015 Jun. 15 [cited 2024 Nov. 21];27(2):48-53. Available from: https://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/710