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.
Growth and development of PM follicles and ES follicles in vitro. Scale bar: 100 μm. Arrows indicate follicular antrum. Day 2, follicles that adhered to the wall. Day 4, follicles with granulose cells breaking through the basement membrane. Day 6, follicles with granulose cells bulging. Day 8, antral follicles. Day 10, follicles close to maturity
