Kiani RS, Munawar R, Bukhari SA, Quddus MA, Tahir R. Assessment of Gastroesophageal Reflux Frequency and Its Clinical Impact in Severe Chronic Obstructive Pulmonary Disease. Pak J Chest Med [Internet]. 2024Mar.2 [cited 2026Apr.19];30(1):51-8. Available from: https://pjcm.net/index.php/pjcm/article/view/945