Roopesh Johnson, Liaquat, and Rangaswamy Siddaiah. 2016. “Tobacco Use and Mortality Due to Cardiovascular Disease, Malignancyand Allcauses in a Large Cohort”. International Journal of Medical Research and Review 4 (5), 736-40. https://doi.org/10.17511/ijmrr.2016.i05.12.