Table 1: Forces corresponding to the Von Frey filaments used in the tests.

Ordinal no.Calibrated force (mean gram ± SEM) (g)Ordinal no.Calibrated force (mean gram ± SEM) (g)

1 9.3
2 9.4
3 9.5
4 9.6
5 9.7
6 9.8
7 9.9
8 10
9 10.1
9.1 10.2
9.2 10.3