Figure 4.
“Portrait of a Youth” by Sandro Boticelli, 1483. The changes depicted in his right hand with swelling and deformity of the fifth digit has been interpreted as arthritis, possibly juvenile.
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.