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.
The distribution of TSH at 4 to 12 (A), 4 to 6 (B), and 7 to 12 (C) gestational weeks between single- and twin-pregnant women. Compared with single-pregnant women, the distribution of TSH in twin-pregnant women is shifted obviously to the left in all three groups. TSH: Thyroid-stimulating hormone.
