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.
Examples of PARP-1 staining in uveal melanoma cells: (A) example of high expression (100×); (B) example of high expression—intense nuclear staining visible only in about half of tumoral cells (400×); (C) example of low expression (100×); and (D) complete lack of staining in tumoral cells. Focally positive internal control (100×).
