Gull Afshan Razi Zaidi, Hafiz Muhammad Rizwan, Kiran Fatima, Marium Munir Tunio, Syed Naveed Tahir, , Bashir Ahmed. Prevalence of Undiagnosed Chronic Obstructive Pulmonary Disease among Smokers and Biomass-Fuel-Exposed Adults: A Multicenter Community-Based Study. IJPRT [Internet]. 2026 Sep. 28 [cited 2026 Oct. 1];16(2):5504-11. Available from: https://www.ijprt.org/index.php/pub/article/view/3207