Allah, Fatima Abd Alwhab Awad, and Hafsa Ahmed Elrheima Ahmed. 2023. “Evaluation of Salivary Alpha Amylase Activity in Smokers With Periodontitis, Khartoum State, 2023”. European Journal of Clinical and Experimental Medicine 21 (4):692–695. https://doi.org/10.15584/ejcem.2023.4.1.