title: Acute exacerbations of chronic obstructive pulmonary disease.
authors.forename: Claudia
authors.initials: C
authors.lastname: Stey
mesh_terms: D000111:Acetylcysteine / Q000627:therapeutic use*; D019317:Evidence-Based Medicine; D005100:Expectorants / Q000627:therapeutic use*; D006801:Humans; D029424:Pulmonary Disease, Chronic Obstructive / Q000150:complications* / Q000188:drug therapy*
chemical_list: D005100:Expectorants; D000111:Acetylcysteine