title: COPD exacerbations. 4: Prevention.
authors.affiliation: Division of Infection and Immunity, Clinical Sciences Centre, University Hospital Aintree, Liverpool L9 7AL, UK.
authors.forename: S
authors.initials: S
authors.lastname: Scott
authors.forename: P
authors.initials: P
authors.lastname: Walker
authors.forename: P M A
authors.initials: PM
authors.lastname: Calverley
mesh_terms: D002986:Clinical Trials as Topic / Q000379:methods*; D005544:Forecasting; D006801:Humans; D007114:Immunization; D010102:Oxygen Inhalation Therapy / Q000379:methods; D010641:Phenotype; D029424:Pulmonary Disease, Chronic Obstructive / Q000517:prevention & control*; D012107:Research Design; D012121:Respiration, Artificial; D019141:Respiratory System Agents / Q000627:therapeutic use; D012141:Respiratory Tract Infections / Q000517:prevention & control
chemical_list: D019141:Respiratory System Agents