@article{ref1,
title="Black widow spider envenomation during pregnancy. Report of a case",
journal="Toxicon: Journal of the International Society on Toxinology",
year="1979",
author="Russell, F. E. and Marcus, P. and Streng, J. A.",
volume="17",
number="2",
pages="188-189",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0041-0101",
doi="",
url="http://dx.doi.org/"
}