@article{ref1,
title="Trying to predict the unpredictable",
journal="Nursing standard (1987)",
year="2007",
author="Pack, Steven",
volume="21",
number="27",
pages="26-27",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0029-6570",
doi="10.7748/ns.21.27.26.s31",
url="http://dx.doi.org/10.7748/ns.21.27.26.s31"
}