@article{doi:10.1001/jama.283.4.534,
author = {Willett WC and Colditz G and Stampfer M},
title = {POstmenopausal estrogens—opposed, unopposed, or none of the above},
journal = {JAMA},
volume = {283},
number = {4},
pages = {534-535},
year = {2000},
doi = {10.1001/jama.283.4.534},
URL = { + http://dx.doi.org/10.1001/jama.283.4.534},
eprint = {/data/Journals/JAMA/4721/JED90102.pdf}
}