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The validity of using ICD-9 codes and pharmacy records to identify patients with chronic obstructive pulmonary disease

Colin R Cooke*, Min J Joo, Stephen M Anderson, Todd A Lee, Edmunds M Udris, Eric Johnson and David H Au

BMC Health Services Research 2011, 11:37  doi:10.1186/1472-6963-11-37

Pre-publication versions of this article and reviewers' reports

Original Submission - Version 1 Manuscript 30 May 2010
Reviewer's Report Paul Enright 02 Oct 2010
Reviewer's Report Reijo Sund 23 Oct 2010
Resubmission - Version 2 Author's comment 16 Dec 2010
Resubmission - Version 3 Manuscript Author's comment 27 Jan 2011
Editorial acceptance 02 Feb 2011
Published 16 Feb 2011