@article{ref1,
title="Prevention of pulmonary embolism in patients with fractures of the femoral neck",
journal="Acta chirurgica Scandinavica Supplementum",
year="1973",
author="Burcharth, F. and Hansen, O. H. and Wolf, H. and Ostergaard, A. H.",
volume="433",
number="",
pages="178-179",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0301-1860",
doi="",
url="http://dx.doi.org/"
}