Drupal-Bibcite31<style face="normal" font="default" size="100%">Population trends in the incidence and initial management of osteoarthritis: age-period-cohort analysis of the Clinical Practice Research Datalink, 1992-2013</style><style face="normal" font="default" size="100%">Population trends in the incidence and initial management of osteoarthritis: age-period-cohort analysis of the Clinical Practice Research Datalink, 1992-2013</style>