@article{ref1,
title="Accidental overdose of caudal morphine chloride",
journal="Revista española de anestesiología y reanimación",
year="1998",
author="Oro Fraile, J. and Velamazán Blocona, M. J. and Sanz Gandasegui, M. and Goñi Benzunegui, A.",
volume="45",
number="4",
pages="156-157",
abstract="<p>[Abstract unavailable]</p><p>Language: es</p>",
language="es",
issn="0034-9356",
doi="",
url="http://dx.doi.org/"
}