S. Abbas, B. Abbas, F. N. Khan, H. R. U. Ehsan, A. Malik, and S. M. Malik, “Smoking Cessation Advice‘The Best Time to Quit Smoking was the Day you Started, the SecondBest Time to Quit is Today’”, Pak Armed Forces Med J, vol. 72, no. SUPPL-2, pp. S311–15, Jun. 2022, doi: 10.51253/pafmj.v72iSUPPL-2.4028.