Fig. 7From: Assessment of respiratory and systemic toxicity of Benzalkonium chloride following a 14-day inhalation study in ratsConcentrations of cytokines in bronchoalveolar lavage fluid (a-g). The values are expressed as mean ± SD (n = 5 males per group). Significantly different from control by Dunn Rank Sum test: *p < 0.05, **p < 0.001Back to article page