Sweeney, Joan ;
Patterson, Chris C ;
Menzies-Gow, Andrew...
Sweeney , J , Patterson , C C , Menzies-Gow , A , Niven , R M , Mansur , A H , Bucknall , C , Chaudhuri , R , Price , D , Brightling , C E & Heaney , L G 2016 , ' 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 , vol. 71 , no. 4 , pp. 339-346 . https://doi.org/10.1136/thoraxjnl-2015-207630 , https://doi.org/10.1136/thoraxjnl-2015-207630.
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2016