The percentage of B cells (CD19+), T cells (CD3+) and myeloid cells (CD19−/CD11b+) were measured by flow cytometry at 5 weeks of age in control (blue) and THS (green)-exposed mice (Control: n=19, one male and one female pup from 9 litters, one male from a 10th litter; THS: n=20; one male and one female pup from 10 litters). (A) BM. (B) SP. (C) Blood. Box and whisker plots indicate median, 25th and 75th percentiles, 5th and 95th percentiles, and individual samples beyond these limits. Nominal P-values shown were obtained using the Mann–Whitney test. Outliers are cases with values beyond 1.5 times (°) the interquartile range. See also Supplementary Table S2 for FDR values.