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THE RELATIONSHIP BETWEEN THE DEGREE OF AIRWAY OBSTRUCTION AND THE DEGREE OF DYSPNEA IN COPD PATIENTS AT RSI SAKINAH. IJCNP [Internet]. 2026 Sep. 21 [cited 2026 Oct. 3];1(1):36-45. Available from: https://ijcnp.lppmubs.com/index.php/ijcnp/article/view/7