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.
Different degrees of protein expression of Nodal, Lefty, and Cripto-1 in human glioblastomas. Nodal: scores 0 (A), 1 (B), and 2 (C). Negative control IgG (D). Lefty: scores 0 (E), 1 (F), 2 (G), and 3 (H). Cripto-1: scores 0 (I), 1 (J), 2 (K), and 3 (L).
