Media type: E-Article Title: Chronic Obstructive Pulmonary Disease in Patients Under Age 65: Utilization and Costs From a Managed Care Sample Contributor: Tinkelman, David G.; George, Dorothy; Halbert, R J. imprint: Ovid Technologies (Wolters Kluwer Health), 2005 Published in: Journal of Occupational and Environmental Medicine Language: English DOI: 10.1097/01.jom.0000184876.95011.23 ISSN: 1076-2752 Keywords: Public Health, Environmental and Occupational Health Origination: Footnote: