Drupal-Bibcite31<style face="normal" font="default" size="100%">Comorbidities in patients with polymyalgia rheumatica prior to and following diagnosis: A case control and cohort study</style><style face="normal" font="default" size="100%">Comorbidities in patients with polymyalgia rheumatica prior to and following diagnosis: A case control and cohort study</style>