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.
Percentage of tool interactions with each of the available tools. Each histogram represents the interactions during the sessions with all tool types: functional (3F), functional spoon (FS) and functional egg-shaped tool (FE) for (a) M1 and (b) M2. Light grey bars, egg-shaped; striped bars, spoon; dark grey bars, stick.
