Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) THOMPSON PJ,Safety of hydrofluoroalkane-134a beclomethasone dipropionate,extrafine aerosol Respir Med,,,1998,92,0,33-39,https://cir.nii.ac.jp/crid/1573668925169175040,