@article{ref1,
title="Report on a very young dizygotic human twin pregnancy",
journal="Archives of gynecology",
year="1981",
author="Meyer, W. R. and Meyer, W. W.",
volume="231",
number="1",
pages="51-56",
abstract="Two ova implanted in one uterus were found at the autopsy of a 28-year-old woman. The ovulation age of both implantations has been estimated to be 10-12 days. The presence of two equally large corpora lutea, one in each ovary, indicates that the implanted ova originated from different ovaries. Thus, an &quot;ovulatio biovarialis&quot; seems to be the basis for the dizygotic twinning in this case. The case is believed to be the only documented example of a very early dizygotic, fraternal pregnancy in humans.<p /><p>Language: en</p>",
language="en",
issn="0170-9925",
doi="",
url="http://dx.doi.org/"
}