How accurate are diagnoses for rheumatoid arthritis and juvenile idiopathic arthritis in the General Practice Research Database?

How accurate are diagnoses for rheumatoid arthritis and juvenile idiopathic arthritis in the General Practice Research Database?

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Manylion Llyfryddiaeth
Prif Awduron: Thomas, S, Edwards, C, Smeeth, L, Cooper, C, Hall, A
Fformat: Conference item
Cyhoeddwyd: 2007

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