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BALF LDH at 4 and 30 d after inhalation exposure to (A) PMET731, (B) PMET885, (C) PMET540, and (D) % air control of LDH for each different thermal spray coating aerosol. Male Sprague-Dawley rats (n= 6/treatment group within a time point) were exposed to a target concentration of 25 mg/m3 × 4 hr/d 4 × d. *Significantly different from corresponding air control within a time point (p < 0.05).
