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Muhammad Imran Shahzad, Gull Afshan Razi, Kashif Sardar, Muhammad Waqas Afzal, Muhammad Wajahat Tariq, Ihsan Ullah 2023. Dose–Response Relationship of Inhaled Corticosteroids on Pulmonary Function and Exacerbation Risk in Copd. Pakistan Journal of Medical & Health Sciences. 17, 11 (Nov. 2023), 671. DOI:https://doi.org/10.53350/pjmhs020231711671.