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.
Schematic showing the study design, including 22 specimens from 22 women, 13 of whom were post-menopausal, assayed in two batches at baseline and in 6 batches 6 years later, each of which included 2 replicates of the pre-menopausal pool and 2 of the post-menopausal pool. The control pools were used to assess batch effects.
