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Total BAL cells recovered after galvanized spot welding (A) with no glue, (B) with glue, and (C) with anti-spatter spray at 1 and 7 days after exposure to 25 mg/m3 for 4 h/day for 8 days. Controls were exposed to filtered air. Values are means ± standard error (n = 6 animals/treatment group); *significantly different from air control within a time point, p < 0.05; #significantly different from corresponding spot weld group at day 7, p < 0.05.
