@article{ref1,
title="Is Colombia a violent country?",
journal="Colombia medica",
year="2017",
author="Guerrero, Rodrigo and Fandiño-Losada, Andres",
volume="48",
number="1",
pages="9-11",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="1657-9534",
doi="",
url="http://dx.doi.org/"
}