An official website of the United States government
Here's how you know
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Effect of maternal center for epidemiological studies of depression ratings on fetal heart rate variability at 29–33 weeks gestation. Effects in male fetuses are significant, β = −0.633, P = 0.045.