@article{ref1,
title="Fractures of the upper portion of the face. Statistical study",
journal="Revista Dental de Chile",
year="1966",
author="Ayub Hauva, M. and Chomali Celse, J.",
volume="56",
number="5",
pages="221-224",
abstract="<p>[Abstract unavailable]</p><p>Language: es</p>",
language="es",
issn="0034-9143",
doi="",
url="http://dx.doi.org/"
}