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.
The data were presented as Mean±SD. Where bars are not shown, SD is less than the height of the points. The figure at the right shows the release profile at the first 12 h as it is not very clear at the original figure.
