Muhammad Mohiuddin Alamgir, and Fouzia Shaikh. “Life-Time Tobacco Consumption and Oral Cancer Among Citizens of Karachi: One of the world’s Highest Reported Incidence Areas for Oral Squamous Cell Carcinoma”. Journal of the Pakistan Medical Association, vol. 71, no. 6, Dec. 2021, pp. 1588-92, doi:10.47391/JPMA.1327.