title: Turbuhaler or nebulizer therapy in severe COPD.
authors.forename: R
authors.initials: R
authors.lastname: O'Driscoll
mesh_terms: D001993:Bronchodilator Agents / Q000008:administration & dosage*; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000188:drug therapy*; D009330:Nebulizers and Vaporizers
chemical_list: D001993:Bronchodilator Agents