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.
P1, P2, and P3 designate cell passage numbers. *represent significant difference from TCP, # represent significant difference from TCP and 103 kPa, $represent significant difference from P1 within the same substrate stiffness (p<0.05, n = 3).
