@misc{oai:tsukuba.repo.nii.ac.jp:00013853, author = {上地, 勝 and Ueji, Masaru}, month = {}, note = {1998, 【要旨】, Joint authors: Ei Ueno ... et al., Offprint. Originally published in: Journal of epidemiology, v. 8, no. 2, pp. 116-122, 1998}, title = {Physical activity and the risk of breast cancer : a case-control study of Japanese women}, year = {1999} }