Drupal-Bibcite0<style face="normal" font="default" size="100%">An investigation of methods to improve recall for the patient-reported outcome measurement in COPD patients: A pilot randomised control trial and feasibility study protocol</style><style face="normal" font="default" size="100%">An investigation of methods to improve recall for the patient-reported outcome measurement in COPD patients: A pilot randomised control trial and feasibility study protocol</style>