K. Haj Hammo, Mohammad, Mohammad, Dhia J. Al layla, Dhia, Rami M. A. Al Hayali, and Rami. “Prevalence of Gastro-Oesophageal Reflux Symptoms in Patients With COPD”. Annals of the College of Medicine, Mosul 32, no. 1 (June 24, 2025): 18–22. Accessed August 4, 2025. https://rjps.uomosul.edu.iq/index.php/mmed/article/view/15303.