@article{ref1,
title="On the usefulness of ontologies in epidemiology research and practice",
journal="Journal of epidemiology and community health",
year="2013",
author="Ferreira, João D. and Paolotti, Daniela and Couto, Francisco M. and Silva, Mário J.",
volume="67",
number="5",
pages="385-388",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0143-005X",
doi="10.1136/jech-2012-201142",
url="http://dx.doi.org/10.1136/jech-2012-201142"
}