Fig. 3From: The evaluation of three treatments for plantar callus: a three-armed randomised, comparative trial using biophysical outcome measuresChange in surface area of the calluses in the potassium hydroxide (KOH) and trichloroacetic acid (TCA) treatment groups at D7, D14 and D21. Note that the greater the change in a positive direction the smaller the callus plaque and vice versa. *represents a significant difference compared to baseline (p = 0.00)Back to article page