@inbook{1157544038,
author={Shivani Patel and Scott Roberts and Vanessa Rogers and Ashley Zink and Elaine Duryea and Jamie Morgan},
title={},
booktitle={Williams Obstetrics Study Guide, 25e},
publisher={McGraw-Hill Education},
address={New York, NY},
year={2019},
url={obgyn.mhmedical.com/content.aspx?aid=1157544038}
}