@article{ref1,
title="Vaginal bleeding after trauma in pregnant woman",
journal="New York state journal of medicine",
year="1970",
author="",
volume="70",
number="18",
pages="2338-2340",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-7628",
doi="",
url="http://dx.doi.org/"
}