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Effect of pentoxifylline (PTX) on TNF-α levels in BAL from rats with mechanically ventilated controls (C-MV) and instilled with HCl. *p<0.05 versus the HCl+PTX and PTX+HCl groups, and #p<0.05 versus the HCl and the HCl+PTX groups. Values are presented as mean ± SD.
