%0 Journal Article %T A randomised open-label cross-over study of inhaler errors, preference and time to achieve correct inhaler use in patients with COPD or asthma: comparison of ELLIPTA with other inhaler devices %J Archive of "NPJ Primary Care Respiratory Medicine". %D 2017 %R 10.1038/npjpcrm.2017.1 %X Correction to: npj Primary Care Respiratory Medicine (2016) 26, 16079; doi:10.1038/npjpcrm.2016.79; published online 24 November 201 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5375387/