Figure 2

Effect of three different doses of mucomodulator XL "B" (sodium tetraborate, five dogs), XL"D" (high molecular weight dextran, six dogs) and XL "S" (normal saline solution, sham exposure, two dogs) on normalized tracheal mucus velocity in spontaneously breathing anesthetized dogs. **Newman-Keuls: p < 0.01 with respect to control. ! Bonferroni: p < 0.05 (correlated groups). † Dunnett: p < 0.01 (treatments versus control).