Fig. 6. Baclofen content of the spinal cord segments between −10 cm and +6 cm in the vertical (open circle ) and horizontal groups (closed circle ). Differences between groups were assessed for statistical significance only at the 0-cm segment (the point of drug administration) and at the caudad (−10 cm) and cephalad (+6 cm) extremes. * Indicates significant difference between the vertical and horizontal groups.