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)
Heather A. Frey and Mark A. Klebanoff,"The epidemiology, etiology, and costs of preterm birth",Seminars in Fetal and Neonatal Medicine,1744-165X,Elsevier BV,2016-04,21,2,68-73,https://cir.nii.ac.jp/crid/1361137046016705920,https://doi.org/10.1016/j.siny.2015.12.011