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.
Immunohistochemical analysis performed with a murine monoclonal IgG2b antibody (clone CM2B4, sc‐136172, Santa Cruz Biotechnology, Dallas, TX).
Abbreviations: MCPyV, Merkel cell polyomavirus; NE, not evaluable; PD, progressive disease; SD, stable disease.
