Budi Mulya, N., Ilyas, M., Arief, E. ., Djaharuddin, I., Nurisyah, S., & Putrawan, H. A. . (2022). Correlation between Interleukin-1β serum level with severity of airway obstruction in Exacerbation Chronic obstructive pulmonary disease (COPD). Nusantara Medical Science Journal, 6(2), 93–102. https://doi.org/10.20956/nmsj.v6i2.18850