Dr. Oza Harsh Nikhilkumar and Dr. Jyoti Vora (2018) “Identifying Risk Factors for Acute Exacerbations of Chronic Obstructive Pulmonary Disease”, Global Journal of Medical Research, 18(F5), pp. 1–6. Available at: https://medicalresearchjournal.org/index.php/GJMR/article/view/1597 (Accessed: 4 May 2024).