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Elevated plus maze. (A) Time spent in the open arm in a 5 min test. Diesel exhaust particles (DEP)-treated animals (n = 24) did not differ from the control group (n = 24) in the amount of time spent in the open arm (F1,45 = 0.153, NS). (B) Number of entries into the open arm. No significant difference was observed in the number of entries into the open arm between treatment groups. (F1,45 = 0.318, NS). Data are presented as mean ± SEM.
