著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Joan Sweeney and Chris C Patterson and Andrew Menzies-Gow and Rob M Niven and Adel H Mansur and Christine Bucknall and Rekha Chaudhuri and David Price and Chris E Brightling and Liam G Heaney,Comorbidity in severe asthma requiring systemic corticosteroid therapy: cross-sectional data from the Optimum Patient Care Research Database and the British Thoracic Difficult Asthma Registry,Thorax,0040-6376,BMJ,2016-01-27,71,4,339-346,https://cir.nii.ac.jp/crid/1363951796161335680,https://doi.org/10.1136/thoraxjnl-2015-207630