RT Journal Article SR Electronic T1 ERJ Podcast September 2017: The hidden burden of severe asthma JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP 17E5003 DO 10.1183/13993003.E5003-2017 VO 50 IS 3 YR 2017 UL http://erj.ersjournals.com/content/50/3/17E5003.abstract AB