@article{ref1,
title="Kleibauer-Betke test for pregnant trauma patients",
journal="American family physician",
year="1997",
author="Johnson, K. H.",
volume="55",
number="3",
pages="781-782",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-838X",
doi="",
url="http://dx.doi.org/"
}