@article{ref1,
title="Planning for the unthinkable",
journal="Public health",
year="2002",
author="Sim, F. and Mackie, P.",
volume="116",
number="1",
pages="1-1",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0033-3506",
doi="10.1038/sj/ph/1900823",
url="http://dx.doi.org/10.1038/sj/ph/1900823"
}