Analysis 3.4.
Comparison 3 Intramuscular (IM) progesterone versus no treatment: multiple pregnancy and short cervix, Outcome 4 Preterm birth less than 37 weeks.
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.