(I) Left: schematic representation of polar histogram analysis by clustering the traced axons (WT n=6 pups, crmp2-/- n=9 pups) into 3 groups based on the growth angles. Right: proportion of axons growing in selected clusters (WT, 0°-±20°: 67.3±10.3%; ±20°-±40°: 21.2±5.3%; ±40°-±60°: 6.22±3.2%; crmp2-/-, 58.5±5%, p=0.047, 27.7±4.3%, p=0.022, 8.64±2.25%, p=0.11), mean ± SD, *p<0.05, t-test. 