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IntroductionOsteopontin (OPN) is a phosphorylated glycoprotein expressed by diverse tissues including bone, brain, kidney, liver and lung. Limited data exist regarding OPN in chronic obstructive pulmonary disease (COPD) and the exacerbation of this condition.
ObjectivesThe aim of this study was to evaluate plasma OPN levels and investigate the clinical usefulness of plasma OPN measurement in patients...
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