text: One of the centerpieces of<unk> <unk>  treatment is debridement of necrotic and fibrotic tissues as well as calluses. Debridement should be done until it reaches the bleeding tissue, which is both a treatment and a diagnostic method to evaluate ulcer margin and abscess's presence.
option_0: Diabetic foot surgery
option_1: Varicose veins surgery
option_2: Diabetic foot medical therapy
option_3: Buerger's disease surgery
option_4: Peripheral arterial disease surgery
option_5: Gout surgery
option_6: Athlete's foot medical therapy
option_7: Diabetic nephropathy surgery