Fig. 3
Changes in mediastinal lymph node weights of rats after inhalation of CWAAP-A (0.3, 1, 3 or 10 mg/m3, 6 h/day, 5 days/week, 13 weeks). Absolute weights of mediastinal lymph nodes in male (a) and female (b) rats were measured at each sacrifice. In c and d, their weights relative to body weight are shown for males (c) and females (d). William’s multiple comparison test compared with age-matched control (0 mg/m3) groups: *p < 0.025, *p < 0.005 and ***p < 0.0005