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.
Multiplanar volume acquisition of the fetal head at 12 weeks 4 days of gestation depicting the transverse(A), coronal (B), and sagittal (C) planes with identification of the sylvian fissure (SF). D, Measurement of the SPB at 12 weeks of gestation.
