Correction: Testing for alpha-1 antitrypsin in COPD in outpatient respiratory clinics in Spain: A multilevel, cross-sectional analysis of the EPOCONSUL study.
cross_sectional · Level IV
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- Also identified by DOI 10.1371/journal.pone.0212522 and PMC identifier 6372200.
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Abstract
[This corrects the article DOI: 10.1371/journal.pone.0198777.].