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Hormone receptor mRNA levels in the lung. Gene expression in the lung was examined 48 h after the last intratracheal administration by RT-PCR analysis. (A) Era. (B) Erb. (C) Ar. Data were expressed as mean ± SE for 3–7 animals per group. The relative intensity was normalized to Hprt1. ** P < 0.01 versus vehicle group. * P < 0.05 versus vehicle group, ** P < 0.01 versus vehicle group, # P < 0.05 versus OVA group, ## P < 0.01 versus OVA group.
