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)
Lawrence W. Oppenheimer and Dan Farine and J.W. Knox Ritchie and Reuven M. Lewinsky and Joyce Telford and Lea A. Fairbanks,What is a low-lying placenta?,American Journal of Obstetrics and Gynecology,0002-9378,Elsevier BV,1991-10,165,4,1036-1038,https://cir.nii.ac.jp/crid/1363388843239022720,https://doi.org/10.1016/0002-9378(91)90465-4