@inbook{1159983649,
author={Robert C. Johnston and Deborah A. Wing},
editor={Butler, Jennifer R. and Amin, Alpesh N. and Fitzmaurice, Laura E. and Kim, Christine M.},
title={Placental Abnormalities},
booktitle={OB/GYN Hospital Medicine: Principles and Practice},
publisher={McGraw-Hill Education},
address={New York, NY},
year={2019},
url={obgyn.mhmedical.com/content.aspx?aid=1159983649}
}