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.
(a) Comparison of viscoelastic properties of fresh aortic valves from sheep and baboon and from cryopreserved human samples. (b) Comparison of viscoelastic properties of fresh pulmonary valves from sheep and baboon and from cryopreserved human samples.
