Sri sakthi.D, Indumathy Pandiyan, N D Jayakumar, Meignana Arumugham Indiran, and Leelavathi.L, “Association between Carbon monoxide level and Tobacco Abstinence Level among Construction workers in Chennai city- An Longitudinal Study”, J Popl Ther Clin Pharmacol, vol. 30, no. 6, pp. 28–36, Apr. 2023, doi: 10.47750/jptcp.2023.30.06.005.