@article{ref1,
title="Etiology of acquired facial asymmetry",
journal="Revista Española de Estomatología",
year="1971",
author="Sada, V. M. and Colmenero Ruiz, B. and Alonso del Hoyo, ",
volume="19",
number="3",
pages="167-186",
abstract="<p>[Abstract unavailable]</p><p>Language: es</p>",
language="es",
issn="0484-7563",
doi="",
url="http://dx.doi.org/"
}