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AECOPD-phenotype pie charts.
Notes: Bacteria: patients who had a positive result for bacterial organisms; Virus: patients who had a positive result for viral organisms either independently or with bacterial organisms. (A) Patients divided by having either a negative or a positive result; (B) positive group subdivided by viral detection.
Abbreviation: AECOPD, acute exacerbations of chronic obstructive pulmonary disease.
