Amita Olivia Coutinho, Sheetal Sanikop. A comparative analysis of superoxide dismutase activity levels in gingiva and gingival crevicular fluid in patients with chronic periodontitis and periodontally healthy controls. Free Rad. Antiox. [Internet]. 2012Dec.29 [cited 2024Nov.23];2(4):19-25. Available from: http://mail.antiox.org/index.php/fra/article/view/247