著者名,タイトル,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Metzger O,Relative effectiveness of letrozole compared with tamoxifen for patients with lobular carcinoma in the BIG 1‐98 trial,Cancer Res,,,2012,72,1024,S1,https://cir.nii.ac.jp/crid/1370285710464723724,