1.1. Analysis.
Comparison 1 All routine Doppler ultrasound versus no Doppler ultrasound, Outcome 1 Perinatal death (stillbirth and neonatal death including anomalies).
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.