Drupal-Bibcite31<style face="normal" font="default" size="100%">The Utilization and Safety of Umeclidinium and Umeclidinium/Vilanterol in UK Primary Care: A Retrospective Cohort Study</style><style face="normal" font="default" size="100%">The Utilization and Safety of Umeclidinium and Umeclidinium/Vilanterol in UK Primary Care: A Retrospective Cohort Study</style>