Fig 3. An example of directed MSTs with different root nodes, which are filled in black.
Attributes {X2, X17, X19, X21, X23, X25} correspond to clinical variables on thyroxine, TSH, T3, TT4, T4U and FTI, respectively.
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.