Saira Aslam, Ahmad Farzad Qureshi, Nadia Haq, Kanwal Khalid, Muhammad Amjad Bari, Kalsoom Akhter 2025. Structural Changes in Alveolar Walls in Chronic Smokers and Serum Surfactant Protein A Levels . International Journal of Pharmacy Research & Technology (IJPRT). 15, 2 (Sep. 2025), 2167–2173.