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Representative cytospin photomicrographs of recovered BAL cells at 4 d after exposure to air (A; control) or 25 mg/m3 of (B) PMET885, (C) PMET540, and (D) PMET731 thermal spray coating aerosols. Arrows = neutrophils; asterisks = eosinophils; M = multinucleated giant cells; F = foamy cells. Magnification is 40x.
