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.
Characterization of MEF cells. A. The primary MEF cells showed a long spindle shaped, cytoplasmic full and strong in stereo dimension. Bar = 100 micrometer. B. Mitomycin C-inactivated MEF as a feeder layer cells: the cell became slender and some black particles uniformly distributed in the cells. Bar = 100 micrometer.
