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.
Non coverage rates were calculated based on the coverage values in the SILVA SSU Ref 113 NR database, using SILVA Test Probe with zero mismatches allowed.
