@article{ref1,
title="Nonobstetric emergencies in pregnancy",
journal="American journal of obstetrics and gynecology",
year="1998",
author="Jelsema, R. D.",
volume="179",
number="2",
pages="558-559",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-9378",
doi="",
url="http://dx.doi.org/"
}