Yin, Tiping Analysis of viral infection and biomarkers in patients with acute exacerbation of chronic obstructive pulmonary disease. [electronic resource] - The clinical respiratory journal Mar 2018 - 1228-1239 p. digital Publication Type: Journal Article ISSN: 1752-699X Standard No.: 10.1111/crj.12656 doi Subjects--Topical Terms: AgedBiomarkers--bloodChina--epidemiologyComorbidity--trendsCytokines--bloodDNA, Viral--analysisDisease ProgressionFemaleHumansMalePolymerase Chain ReactionPrognosisPulmonary Disease, Chronic Obstructive--bloodRecurrenceRetrospective StudiesSurvival Rate--trendsVirus Diseases--bloodViruses--geneticsVital Capacity