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Poor agreement between chart-based and objectively identified comorbidities of COPD
Filip J J Triest1, Frits M E Franssen2, Martijn A Spruit3
1Department of Research and Education, CIRO (Centre of Expertise for Chronic Organ Failure), Horn, The Netherlands Department of Respiratory Medicine, Maastricht University Medical Centre (MUMC+), Maastricht, The Netherlands filiptriest@hotmail.com.
No abstract available in PubMed .
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