@article{ref1,
title="Trauma as the sole cause of abruptio placentae with blood coagulation disorders",
journal="Zentralblatt für Gynäkologie",
year="1967",
author="Waldeyer, L.",
volume="89",
number="39",
pages="1409-1412",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0044-4197",
doi="",
url="http://dx.doi.org/"
}