Fattakhova Yuliya Edgarovna and Matrzayeva Shoira Gulimboyevna 2024. Markers Of Progression of Chronic Obstructive Pulmonary Disease. Texas Journal of Philology, Culture and History . 30, (May 2024), 5–12. DOI:https://doi.org/10.62480/tjpch.2024.vol30.pp5-12.