Figure 4From: Rat pulmonary responses to inhaled nano-TiO2: effect of primary particle size and agglomeration state BALF cytology analyzed by the cytospin method. Data were expressed as fold increases of exposed groups compared to controls. Bars represent the mean value and the standard error of the mean obtained for 6 rats in each exposure group. Statistical procedures: ANOVA followed by a Tukey’s test. *Mean value is statistically different from control level p < 0.05.Back to article page