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) Oona MR Campbell and Wendy J Graham,Strategies for reducing maternal mortality: getting on with what works,The Lancet,0140-6736,Elsevier BV,2006-10,368,9543,1284-1299,https://cir.nii.ac.jp/crid/1362825895247045376,https://doi.org/10.1016/s0140-6736(06)69381-1