A DS, Prakash DS. Cigarette Smoking As a Risk Factor For Periodontal Disease Severity: Cigarette Smoking As a Risk Factor For Periodontal Disease Severity. Natl J Integr Res Med [Internet]. 2012 Jun. 30 [cited 2024 Nov. 22];3(2):161-4. Available from: http://nicpd.ac.in/ojs-/index.php/njirm/article/view/2016