137: Changes in maternal mortality ratio in the us over four decades:associations with abortive pregnancy
Schuster, Meike, Keselowski, Kerri, Brandt, Justin S., Rosen, Todd J., Ananth, Cande V.Volume:
222
Journal:
American Journal of Obstetrics and Gynecology
DOI:
10.1016/j.ajog.2019.11.153
Date:
January, 2020
File:
PDF, 558 KB
2020