Ilyas, Muhammad. “Association of Fibrinogen and Neutrophil Levels With Incidence and Severity of Chronic Obstructive Pulmonary Disease”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 48, no. 1 (August 14, 2019): 143–159. Accessed April 28, 2024. https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/10235.