Validity and completeness of rheumatoid arthritis diagnoses in the nationwide DANBIO clinical register and the Danish National Patient Registry.
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Clin Epidemiol. 2017 Nov 29;9:627-632. doi: 10.2147/CLEP.S141438. eCollection 2017.
Clin Epidemiol. 2017.
PMID: 29238225
Free PMC article.