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.
Negative and positive controls of the patterns of HIF-1 alpha expression; A) Typical microscopic features of mammary gland cells as the negative control and; B) presence of of HIF-1 alpha postive cells in mammary invasive ductal carcinoma cells serving as the positive control
