@article{ref1,
title="Traumatic laceration of the placenta",
journal="West Virginia medical journal",
year="1980",
author="Ravangard, F. and Porter, C. V.",
volume="76",
number="6",
pages="125-129",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0043-3284",
doi="",
url="http://dx.doi.org/"
}