Drupal-Bibcite31<style face="normal" font="default" size="100%">Searching for a prodrome for rheumatoid arthritis in the primary care record: A case-control study in the clinical practice research datalink</style><style face="normal" font="default" size="100%">Searching for a prodrome for rheumatoid arthritis in the primary care record: A case-control study in the clinical practice research datalink</style>