Drupal-Bibcite31<style face="normal" font="default" size="100%">Switching patients from other inhaled corticosteroid devices to the Easyhaler((R)): historical, matched-cohort study of real-life asthma patients</style><style face="normal" font="default" size="100%">Switching patients from other inhaled corticosteroid devices to the Easyhaler((R)): historical, matched-cohort study of real-life asthma patients</style>