@article{ref1,
title="Murder of nine polio workers in Nigeria threatens eradication efforts",
journal="BMJ",
year="2013",
author="Arie, Sophie",
volume="346",
number="",
pages="f954-f954",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0959-535X",
doi="",
url="http://dx.doi.org/"
}