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Multicenter Study Comparing Case Definitions Used to Identify Patients with Chronic Obstructive Pulmonary Disease
Rationale: Clinical trials in chronic obstructive pulmonary disease (COPD) usually require evidence of airflow obstruction and clinical risk factors. International Classification of Diseases, Ninth Revision (ICD-9) diagnosis codes or patient-reported physician diagnoses are often used for epidemiolo...
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| Vydáno v: | Am J Respir Crit Care Med |
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| Hlavní autoři: | , , , , , , , , , , , , |
| Médium: | Artigo |
| Jazyk: | Inglês |
| Vydáno: |
American Thoracic Society
2014
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| Témata: | |
| On-line přístup: | https://ncbi.nlm.nih.gov/pmc/articles/PMC4299587/ https://ncbi.nlm.nih.gov/pubmed/25192554 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1164/rccm.201406-1166OC |
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