text: <unk> s usually refer to ulcers of the lower<unk> .  The most common cause of<unk> s is venous insufficiency.
option_0: Leg ulcer
option_1: Foot rot
option_2: Venous ulcer
option_3: Pressure ulcer
option_4: Diabetic foot
option_5: Plantar wart
option_6: Athlete's foot
option_7: Metatarsalgia