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) HUGHES JM,Radiographic evidence of silicosis risk in the diatomaceous earth industry,Am J Respir Crit Care Med,,,1998,158,,807-814,https://cir.nii.ac.jp/crid/1573105974126933760,