Kanwal Abbas Bhatti, Noor Nabi Siyal, Altaf Hussain Memon, Ghulam Muhammad Phull, Hanozia Hassan, Mukhtiar Ahmed Abro 2022. A Comparative Study of ECG and Blood Pressure among Smokers and Non-Smokers. Pakistan Journal of Medical & Health Sciences. 16, 03 (Apr. 2022), 635. DOI:https://doi.org/10.53350/pjmhs22163635.