Figure 10.
Signal loss from field use of the magnetic composite sheath. One participant used the sheath for two weeks and the other for four weeks.
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.