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.
Time-dependent effective modulus is similar to stress relaxation modulus and converges to a consistent steady-state value regardless of initial indentation rate. Indentations were performed at nearby locations (~0.5 mm away) after allowing ~5 min of recovery to minimize natural biological variation between measurements.
