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.
Effects of DDT exposures on the ability of NK cells to lyse tumor cells. NK cells were exposed to 0.25-10 μM DDT for 1 hr, 24 hr, 48 hr, or 6 d. Results were from three separate experiments using different donors (triplicate determinations for each experiment; n = 9, mean ± SD), as described in Figure 1. *Statistically significant change as compared to control cells at that same length of incubation (p < 0.05).
