@article{ref1,
title="Estrogen and the risk of fracture--new data, new questions",
journal="New England journal of medicine",
year="1998",
author="Raisz, L. G. and Prestwood, K. M.",
volume="339",
number="11",
pages="767-768",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-4793",
doi="10.1056/NEJM199809103391110",
url="http://dx.doi.org/10.1056/NEJM199809103391110"
}