@article{ref1,
title="Foreign body stuck in the esophagus of children",
journal="G.E.N.",
year="1988",
author="Torres, P. and Suárez de Agüero, L. and Vílchez, L. and Torres, C. E. and Römer, H.",
volume="42",
number="2",
pages="56-59",
abstract="<p>[Abstract unavailable]</p><p>Language: es</p>",
language="es",
issn="0016-3503",
doi="",
url="http://dx.doi.org/"
}