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.
Body weight, histopathological, and biochemical analyses after 28-day oral administration of the indicated silica particles. (A) Body weight during 28-day oral administration of silica particles; plasma concentrations of (B) alanine aminotransferase (ALT) and (C) blood urea nitrogen (BUN). Values are expressed as mean ± SE (n = 4 to 11).
