Muhammad Asif Khan, Anwar Ul Haq, Imran Qadir Khattak, Farhan Zeb, Hameed Ullah, Muhammad Awais 2023. COPD Patients Had a Greater Probability of Getting GERD than the General Population. A Multi Center Study. Pakistan Journal of Medical & Health Sciences. 16, 12 (Feb. 2023), 815. DOI:https://doi.org/10.53350/pjmhs20221612815.