@Article{He2023,
journal="Journal of Obstetrics and Gynecological Investigations",
issn="2545-0646",
year="2023",
title="Placenta retention is associated with threatened abortion at the early stage of pregnancy",
author="He, Xiaoya
and Liu, Huishu",
pages="1--6",
doi="10.5114/jogi.2023.128810",
url="http://dx.doi.org/10.5114/jogi.2023.128810"
}