highly significantP <0.001
Interestingly, for this group the ‘after-before’ difference in the VAS scores was highly significant ( P <0.001) and still remained significant ( P <0.05) even if the improvement was reduced to 20 mm.
Interestingly, for this group the ‘after-before’ difference in the VAS scores was highly significant ( P <0.001) and still remained significant ( P <0.05) even if the improvement was reduced to 20 mm.