| FHD group (n = 30) | Control group (n = 30) | p-value |
0 day | 0 | 0 | --- |
1 week | 0 | 0 | --- |
2 week | 0 | 1.6 ± 0.1 | 0.473 |
3 week | 0 | 3.5 ± 0.3 | 0.668 |
4 week | 1.5 ± 0.3 | 12.3 ± 3.3 | 0.267 |