@article{ref1,
title="Can death from venous thromboembolism be prevented in elderly patients with hip fractures?",
journal="American heart journal",
year="1978",
author="Mitchell, J. R. and Morris, G. K.",
volume="95",
number="2",
pages="139-140",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-8703",
doi="",
url="http://dx.doi.org/"
}