highly significantp = 0.0043
8 a) showed a highly significant elongation of ANF dendrites re control at 1 week post exposure (p = 0.0043, 2-way ANOVA; p = 0.036 @16 kHz, Holm-Sidak multiple comparisons), with a return to normal at 1 month (p = 0.189 2-way ANOVA; p = 0.735 @ 16 kHz, Holm-Sidak multiple comparisons).