@article{ref1,
title="How many nurses are enough?",
journal="Accident and emergency nursing",
year="2007",
author="McClelland, Heather",
volume="15",
number="1",
pages="1-2",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0965-2302",
doi="10.1016/j.aaen.2006.11.006",
url="http://dx.doi.org/10.1016/j.aaen.2006.11.006"
}