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.
Viability of cultured human lumbar ligamentum flavum (LF) cells was assessed by MTT assay. Although the proliferation of LF cells was enhanced with time, no significant differences among passage (P)1, P3 and P5 cells at 0, 24, 48 or 72 h were detected. n=5, *P<0.05.
