Ameen, Mazen, Alaa Moustafa Attia, Anas Felimban, Tariq Al-Dweghri, Abdulrahman Fattni, Ehab Azab, Sameh Baz, and Ahmed Dardir. 2020. “Evaluation of Cardiac Biomarkers in Smokers and Non-Smokers With Chronic Periodontitis”. International Journal of Health Sciences 14 (3). https://ijhs.qu.edu.sa/index.php/journal/article/view/4814.