title: [Role of bacterial infection in acute exacerbations of chronic obstructive pulmonary disease].
authors.forename: Bin
authors.initials: B
authors.lastname: Cao
authors.forename: Bai-qiang
authors.initials: BQ
authors.lastname: Cai
mesh_terms: D001424:Bacterial Infections / Q000503:physiopathology*; D006801:Humans; D029424:Pulmonary Disease, Chronic Obstructive / Q000382:microbiology* / Q000503:physiopathology