@article{ref1,
title="Factors influencing mortality in hip fractures",
journal="American journal of surgery",
year="1964",
author="Lorhan, P. H. and Shelby, E. A.",
volume="108",
number="",
pages="645-648",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-9610",
doi="",
url="http://dx.doi.org/"
}