@article{doi:10.1001/archinte.159.19.2290,
author = {Rockhill B and Willett WC and Hunter DJ and Manson JE and Hankinson SE and Colditz GA},
title = {A prospective study of recreational physical activity and breast cancer risk},
journal = {Archives of Internal Medicine},
volume = {159},
number = {19},
pages = {2290-2296},
year = {1999},
doi = {10.1001/archinte.159.19.2290},
URL = { + http://dx.doi.org/10.1001/archinte.159.19.2290},
eprint = {/data/Journals/INTEMED/11952/ioi81152.pdf}
}