Suliaman E, Qasem L. Study the phenomenon of the occurrence of ectopic cells and their treatment by applying the cathodic protection principle using different media and poles. EDUSJ [Internet]. 2018 Apr. 1 [cited 2025 Aug. 6];27(2):30-46. Available from: https://ojs.uomosul.edu.iq/index.php/edusj/article/view/23837