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) LEWIS MA,The increased risk of venous thromboemboism and the use of third generation progestagens : Role of bias in observational research,Contraception,,,1996,54,,5-13,https://cir.nii.ac.jp/crid/1573950400444956672,