Strain dependent bronchoalveolar lavage cell differentials in acute radiation response. Bronchoalveolar lavage fluid was evaluated in control and irradiated mice 6 hours, 1 day and 7 days post-irradiation. Shown are the numbers of each cell type per ml of bronchoalveolar lavage fluid. Results are presented as mean ± SE for groups of n = 4–5 mice. Significant variation in inbred strain measures by ANOVA indicated.