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Effect of promoting inducible NO on SCF-mediated killing. (A) NO level in the presence of sodium nitroprusside. (B and C) Percent survival of the three strains at the indicated concentrations of sodium nitroprusside (B) or SCF (C). Results are displayed as means ± SEM, and significant differences as determined by two-tailed Student's t test are identified (**, P < 0.01).
