Drupal-Bibcite0<style face="normal" font="default" size="100%">Real-world comparative effectiveness of three single-inhaler dual bronchodilators for the treatment of chronic obstructive pulmonary disease</style><style face="normal" font="default" size="100%">Real-world comparative effectiveness of three single-inhaler dual bronchodilators for the treatment of chronic obstructive pulmonary disease</style>