@article{ref1,
title="Black widow spider (Latrodectus mactans) bite during pregnancy",
journal="Western journal of medicine",
year="1994",
author="Handel, C. C. and Izquierdo, L. A. and Curet, L. B.",
volume="160",
number="3",
pages="261-262",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0093-0415",
doi="",
url="http://dx.doi.org/"
}