title: Number needed to treat in COPD: exacerbations versus pneumonias.
authors.forename: Oliver N
authors.initials: ON
authors.lastname: Keene
authors.forename: Antonio
authors.initials: A
authors.lastname: Anzueto
authors.forename: Gary T
authors.initials: GT
authors.lastname: Ferguson
authors.forename: Peter M A
authors.initials: PM
authors.lastname: Calverley
mesh_terms: D000893:Anti-Inflammatory Agents / Q000627:therapeutic use*; D006801:Humans; D011014:Pneumonia / Q000188:drug therapy* / Q000453:epidemiology*; D029424:Pulmonary Disease, Chronic Obstructive / Q000188:drug therapy* / Q000453:epidemiology*
chemical_list: D000893:Anti-Inflammatory Agents
keywords: COPD Exacerbations