Jagdesh Kumar, Shafi Muhammad Khuhawar, Bashir Ahmed Chandio, Khalil Ahmed Sanghro, Saleh Muhammad Channa. “Effect of Smoking on Chest Expansion, Respiratory and Lung Functions”. Pakistan Journal of Medical & Health Sciences 16, no. 06 (July 9, 2022): 340. Accessed November 21, 2024. https://mail.pjmhsonline.com/index.php/pjmhs/article/view/1594.