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)
ANDREWS WW,Second-trimester cervical ultrasound : Associations with increased risk for recurrent early spontaneous delivery,Obstet Gynecol,,,2000,95,,222-226,https://cir.nii.ac.jp/crid/1572824500492914816,