Sana Shah, Madiha Shah, Abid Laghari, Shaheen Shah. 2016. “Association of Sociodemographic Factor and Tobacco Consumption With Periodontitis”. Journal of Peoples University of Medical &Amp; Health Sciences Nawabshah. (JPUMHS) 6 (3):128-32. http://121.52.155.46/index.php/ojs/article/view/240.