@article{ref1,
title="Colombia continues to struggle with violence",
journal="Lancet",
year="2007",
author="Ceaser, Mike",
volume="370",
number="9599",
pages="1601-1602",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0140-6736",
doi="10.1016/S0140-6736(07)61674-2",
url="http://dx.doi.org/10.1016/S0140-6736(07)61674-2"
}