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.
Visual difference between samples before and after the CCT test: (a) PA1010 before, (b) PA1010 /10HNTs before, (c) PA1010/20HNTs before, (d) PA1010/30HNTs before and (e) PA1010 after, (f) PA1010/10HNTs after, (g) PA1010/20HNTs after, (h) PA1010/30HNTs after.
