Fig. 1From: T cells suppress memory-dependent rapid mucous cell metaplasia in mouse airwaysExperimental design for testing the effect of LPS challenge on LPS-pretreated rats. F344/N rats were challenged intratracheally with 1000 μg LPS (L) or saline (S) on d1 and rechallenged with 0, 1, 10 or 100 μg LPS on d40, and the necropsy (Nx) was performed on d41Back to article page