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) Amadeu Gavaldà and Richard S Roberts,Phosphodiesterase-4 inhibitors: a review of current developments (2010 – 2012),Expert Opinion on Therapeutic Patents,1354-3776,Informa Healthcare,2013-05-04,23,8,997-1016,https://cir.nii.ac.jp/crid/1360574093908543872,https://doi.org/10.1517/13543776.2013.794789