@article{ref1,
title="Aristotle and compulsory transfers",
journal="Atencion Primaria",
year="2005",
author="Machín Hamalainen, S. and Gimeno Santamaría, M. L. and Vázquez Piqué, J. and Gutiérrez Sánchez, F.",
volume="35",
number="5",
pages="273-273",
abstract="<p>[Abstract unavailable]</p><p>Language: es</p>",
language="es",
issn="0212-6567",
doi="",
url="http://dx.doi.org/"
}