Mean size of ulcers | Range | Mean | SD |
At day 0 | 3 - 10 mm | 6.20 | 2.67 |
At day 4 | 0 - 4 mm | 0.72 | 1.33 |
At day 8 | 0 - 1 mm | 0.04 | 0.20 |
P value < 0.0001 |