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Editor's Correspondence
August NaN, 2010

Trends in Population Burden of COPD: Actual Facts or Fallacies?

Author Affiliations

Author Affiliations: Primary Care Respiratory Research & Development Unit, Department of Primary and Community Care, Radboud University Nijmegen Medical Centre, Nijmegen, the Netherlands (Drs Bischoff and Schermer); and Primary Care Respiratory Research Unit, Discipline of General Practice, School of Population Health & Clinical Practice, University of Adelaide, Adelaide, Australia (Dr Crockett).

Arch Intern Med. 2010;170(15):1408-1410. doi:10.1001/archinternmed.2010.259

With great interest we read the contribution by Gershon and colleagues1 about chronic obstructive pulmonary disease (COPD)-related prevalence, incidence, and mortality in Canada. Their study is another example of how administrative databases can be powerful sources of research data. Nonetheless, after studying the article we felt that we should make some comments.

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